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Materials Data on LiMo6(Se3S)2 by Materials Project

LiMo6(Se3S)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. Li1+ is bonded in a 2-coordinate geometry to six Se2- atoms. There are a spread of Li–Se bond distances ranging from 2.50–3.24 Å. There are six inequivalent Mo+2.50+ sites. In the first Mo+2.50+ site, Mo+2.50+ is bonded to four Se2- and one S2- atom to form a mixture of edge and corner-sharing MoSe4S square pyramids. There are a spread of Mo–Se bond distances ranging from 2.55–2.64 Å. The Mo–S bond length is 2.47 Å. In the second Mo+2.50+ site, Mo+2.50+ is bonded to four Se2- and one S2- atom to form a mixture of edge and corner-sharing MoSe4S square pyramids. There are a spread of Mo–Se bond distances ranging from 2.55–2.68 Å. The Mo–S bond length is 2.47 Å. In the third Mo+2.50+ site, Mo+2.50+ is bonded to three Se2- and two S2- atoms to form a mixture of edge and corner-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.55–2.63 Å. There are one shorter (2.46 Å) and one longer (2.47 Å) Mo–S bond lengths. In the fourth Mo+2.50+ site, Mo+2.50+ is bonded to three Se2- and two S2- atoms to form a mixture of edge and corner-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.55–2.67 Å. There are one shorter (2.45 Å) and one longer (2.58 Å) Mo–S bond lengths. In the fifth Mo+2.50+ site, Mo+2.50+ is bonded to four Se2- and one S2- atom to form a mixture of edge and corner-sharing MoSe4S square pyramids. There are a spread of Mo–Se bond distances ranging from 2.57–2.68 Å. The Mo–S bond length is 2.45 Å. In the sixth Mo+2.50+ site, Mo+2.50+ is bonded to four Se2- and one S2- atom to form a mixture of edge and corner-sharing MoSe4S square pyramids. There are a spread of Mo–Se bond distances ranging from 2.53–2.63 Å. The Mo–S bond length is 2.57 Å. There are six inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 5-coordinate geometry to one Li1+ and four Mo+2.50+ atoms. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to one Li1+ and four Mo+2.50+ atoms. In the third Se2- site, Se2- is bonded in a 5-coordinate geometry to one Li1+ and four Mo+2.50+ atoms. In the fourth Se2- site, Se2- is bonded in a 5-coordinate geometry to one Li1+ and four Mo+2.50+ atoms. In the fifth Se2- site, Se2- is bonded in a 1-coordinate geometry to one Li1+ and three Mo+2.50+ atoms. In the sixth Se2- site, Se2- is bonded in a 1-coordinate geometry to one Li1+ and three Mo+2.50+ atoms. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to four Mo+2.50+ atoms. In the second S2- site, S2- is bonded in a 4-coordinate geometry to four Mo+2.50+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on SmMo6(SeS)4 by Materials Project

SmMo6(SeS)4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. Sm3+ is bonded in a body-centered cubic geometry to four Se2- and four S2- atoms. There are a spread of Sm–Se bond distances ranging from 2.84–3.11 Å. There are a spread of Sm–S bond distances ranging from 2.91–3.26 Å. There are six inequivalent Mo+2.17+ sites. In the first Mo+2.17+ site, Mo+2.17+ is bonded to two Se2- and three S2- atoms to form a mixture of edge and corner-sharing MoSe2S3 trigonal bipyramids. There are one shorter (2.53 Å) and one longer (2.73 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.46–2.53 Å. In the second Mo+2.17+ site, Mo+2.17+ is bonded to three Se2- and two S2- atoms to form a mixture of edge and corner-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.53–2.72 Å. There are one shorter (2.44 Å) and one longer (2.54 Å) Mo–S bond lengths. In the third Mo+2.17+ site, Mo+2.17+ is bonded to two Se2- and three S2- atoms to form MoSe2S3 square pyramids that share corners with three MoSe3S2 square pyramids, a cornercorner with one MoSe2S3 trigonal bipyramid, edges with four MoSe3S2 square pyramids, and an edgeedge with one MoSe2S3 trigonal bipyramid. There are one shorter (2.52 Å) and one longer (2.58 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.46–2.64 Å. In the fourth Mo+2.17+ site, Mo+2.17+ is bonded to three Se2- and two S2- atoms to form MoSe3S2 square pyramids that share corners with four MoSe3S2 square pyramids, edges with four MoSe3S2 square pyramids, and an edgeedge with one MoSe2S3 trigonal bipyramid. There are a spread of Mo–Se bond distances ranging from 2.52–2.68 Å. There are one shorter (2.48 Å) and one longer (2.72 Å) Mo–S bond lengths. In the fifth Mo+2.17+ site, Mo+2.17+ is bonded to two Se2- and three S2- atoms to form MoSe2S3 square pyramids that share corners with three MoSe2S3 square pyramids, a cornercorner with one MoSe2S3 trigonal bipyramid, edges with four MoSe3S2 square pyramids, and an edgeedge with one MoSe2S3 trigonal bipyramid. There are one shorter (2.53 Å) and one longer (2.69 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.45–2.70 Å. In the sixth Mo+2.17+ site, Mo+2.17+ is bonded to two Se2- and three S2- atoms to form MoSe2S3 square pyramids that share corners with three MoSe3S2 square pyramids, a cornercorner with one MoSe2S3 trigonal bipyramid, edges with four MoSe3S2 square pyramids, and an edgeedge with one MoSe2S3 trigonal bipyramid. There are one shorter (2.52 Å) and one longer (2.58 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.49–2.64 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 5-coordinate geometry to one Sm3+ and four Mo+2.17+ atoms. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to one Sm3+ and four Mo+2.17+ atoms. In the third Se2- site, Se2- is bonded in a 1-coordinate geometry to one Sm3+ and three Mo+2.17+ atoms. In the fourth Se2- site, Se2- is bonded in a 1-coordinate geometry to one Sm3+ and three Mo+2.17+ atoms. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 5-coordinate geometry to one Sm3+ and four Mo+2.17+ atoms. In the second S2- site, S2- is bonded in a 5-coordinate geometry to one Sm3+ and four Mo+2.17+ atoms. In the third S2- site, S2- is bonded in a 5-coordinate geometry to one Sm3+ and four Mo+2.17+ atoms. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to one Sm3+ and four Mo+2.17+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on TlMo6(SeS)4 by Materials Project

Mo6Tl(SeS)4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Mo+2.50+ sites. In the first Mo+2.50+ site, Mo+2.50+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.57–2.68 Å. There are one shorter (2.38 Å) and one longer (2.47 Å) Mo–S bond lengths. In the second Mo+2.50+ site, Mo+2.50+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.59–2.74 Å. There are one shorter (2.42 Å) and one longer (2.50 Å) Mo–S bond lengths. In the third Mo+2.50+ site, Mo+2.50+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. There are one shorter (2.59 Å) and one longer (2.68 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.40–2.48 Å. In the fourth Mo+2.50+ site, Mo+2.50+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. There are one shorter (2.60 Å) and one longer (2.64 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.38–2.64 Å. In the fifth Mo+2.50+ site, Mo+2.50+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.61–2.74 Å. There are one shorter (2.43 Å) and one longer (2.51 Å) Mo–S bond lengths. In the sixth Mo+2.50+ site, Mo+2.50+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. There are two shorter (2.60 Å) and one longer (2.64 Å) Mo–Se bond lengths. There are one shorter (2.40 Å) and one longer (2.62 Å) Mo–S bond lengths. Tl1+ is bonded in a body-centered cubic geometry to four Se2- and four S2- atoms. There are a spread of Tl–Se bond distances ranging from 3.25–3.39 Å. There are a spread of Tl–S bond distances ranging from 2.97–3.39 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.50+ and one Tl1+ atom. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.50+ and one Tl1+ atom. In the third Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.50+ and one Tl1+ atom. In the fourth Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.50+ and one Tl1+ atom. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to three Mo+2.50+ and one Tl1+ atom. In the second S2- site, S2- is bonded in a 4-coordinate geometry to three Mo+2.50+ and one Tl1+ atom. In the third S2- site, S2- is bonded in a 5-coordinate geometry to four Mo+2.50+ and one Tl1+ atom. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to four Mo+2.50+ and one Tl1+ atom.

36 MATERIALS SCIENCE↗

Materials Data on HgMo6(SeS)4 by Materials Project

Mo6Hg(SeS)4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Mo+2.33+ sites. In the first Mo+2.33+ site, Mo+2.33+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. There are one shorter (2.53 Å) and one longer (2.63 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.44–2.48 Å. In the second Mo+2.33+ site, Mo+2.33+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.51–2.63 Å. There are one shorter (2.43 Å) and one longer (2.47 Å) Mo–S bond lengths. In the third Mo+2.33+ site, Mo+2.33+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. There are one shorter (2.51 Å) and one longer (2.55 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.44–2.52 Å. In the fourth Mo+2.33+ site, Mo+2.33+ is bonded to three Se2- and two S2- atoms to form MoSe3S2 square pyramids that share corners with four MoSe3S2 square pyramids and edges with five MoSe2S3 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.50–2.65 Å. There are one shorter (2.43 Å) and one longer (2.58 Å) Mo–S bond lengths. In the fifth Mo+2.33+ site, Mo+2.33+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. There are one shorter (2.52 Å) and one longer (2.65 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.43–2.58 Å. In the sixth Mo+2.33+ site, Mo+2.33+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. There are one shorter (2.51 Å) and one longer (2.56 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.46–2.51 Å. Hg2+ is bonded in a distorted body-centered cubic geometry to four Se2- and four S2- atoms. There are a spread of Hg–Se bond distances ranging from 2.55–3.23 Å. There are a spread of Hg–S bond distances ranging from 3.32–3.43 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.33+ and one Hg2+ atom. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.33+ and one Hg2+ atom. In the third Se2- site, Se2- is bonded in a 1-coordinate geometry to three Mo+2.33+ and one Hg2+ atom. In the fourth Se2- site, Se2- is bonded in a 1-coordinate geometry to three Mo+2.33+ and one Hg2+ atom. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to four Mo+2.33+ and one Hg2+ atom. In the second S2- site, S2- is bonded in a 4-coordinate geometry to four Mo+2.33+ and one Hg2+ atom. In the third S2- site, S2- is bonded in a 4-coordinate geometry to four Mo+2.33+ and one Hg2+ atom. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to four Mo+2.33+ and one Hg2+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Re3Mo2 by Materials Project

Mo2Re3 is beta Plutonium-derived structured and crystallizes in the orthorhombic Cmm2 space group. The structure is three-dimensional. there are five inequivalent Mo sites. In the first Mo site, Mo is bonded in a 5-coordinate geometry to one Mo and seven Re atoms. The Mo–Mo bond length is 3.02 Å. There are a spread of Mo–Re bond distances ranging from 2.64–3.03 Å. In the second Mo site, Mo is bonded in a 5-coordinate geometry to one Mo and seven Re atoms. The Mo–Mo bond length is 3.04 Å. There are a spread of Mo–Re bond distances ranging from 2.64–3.01 Å. In the third Mo site, Mo is bonded to two equivalent Mo and ten Re atoms to form distorted edge-sharing MoRe10Mo2 cuboctahedra. Both Mo–Mo bond lengths are 2.81 Å. There are a spread of Mo–Re bond distances ranging from 2.61–2.88 Å. In the fourth Mo site, Mo is bonded to twelve Re atoms to form edge-sharing MoRe12 cuboctahedra. There are a spread of Mo–Re bond distances ranging from 2.60–2.88 Å. In the fifth Mo site, Mo is bonded in a 2-coordinate geometry to five Mo and nine Re atoms. There are a spread of Mo–Re bond distances ranging from 2.52–3.21 Å. There are seven inequivalent Re sites. In the first Re site, Re is bonded in a 2-coordinate geometry to five Mo and eight Re atoms. There are a spread of Re–Re bond distances ranging from 2.98–3.10 Å. In the second Re site, Re is bonded in a 2-coordinate geometry to six Mo and six Re atoms. There are four shorter (2.99 Å) and two longer (3.22 Å) Re–Re bond lengths. In the third Re site, Re is bonded in a 12-coordinate geometry to six Mo and six Re atoms. There are a spread of Re–Re bond distances ranging from 2.65–2.83 Å. In the fourth Re site, Re is bonded in a 12-coordinate geometry to six Mo and six Re atoms. There are a spread of Re–Re bond distances ranging from 2.66–2.82 Å. In the fifth Re site, Re is bonded in a 11-coordinate geometry to five Mo and nine Re atoms. There are one shorter (2.52 Å) and one longer (2.54 Å) Re–Re bond lengths. In the sixth Re site, Re is bonded in a 2-coordinate geometry to three Mo and four Re atoms. In the seventh Re site, Re is bonded in a 11-coordinate geometry to five Mo and nine Re atoms.

36 MATERIALS SCIENCE↗

Materials Data on InMo6(SeS)4 by Materials Project

Mo6In(SeS)4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Mo+2.17+ sites. In the first Mo+2.17+ site, Mo+2.17+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. There are two shorter (2.59 Å) and one longer (2.68 Å) Mo–Se bond lengths. There are one shorter (2.40 Å) and one longer (2.48 Å) Mo–S bond lengths. In the second Mo+2.17+ site, Mo+2.17+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.58–2.73 Å. There are one shorter (2.41 Å) and one longer (2.46 Å) Mo–S bond lengths. In the third Mo+2.17+ site, Mo+2.17+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. There are one shorter (2.59 Å) and one longer (2.68 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.41–2.48 Å. In the fourth Mo+2.17+ site, Mo+2.17+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. There are one shorter (2.60 Å) and one longer (2.67 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.41–2.64 Å. In the fifth Mo+2.17+ site, Mo+2.17+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.58–2.74 Å. There are one shorter (2.42 Å) and one longer (2.49 Å) Mo–S bond lengths. In the sixth Mo+2.17+ site, Mo+2.17+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.58–2.65 Å. There are one shorter (2.39 Å) and one longer (2.63 Å) Mo–S bond lengths. In3+ is bonded in a distorted body-centered cubic geometry to four Se2- and four S2- atoms. There are a spread of In–Se bond distances ranging from 3.12–3.21 Å. There are a spread of In–S bond distances ranging from 2.85–3.32 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.17+ and one In3+ atom. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.17+ and one In3+ atom. In the third Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.17+ and one In3+ atom. In the fourth Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.17+ and one In3+ atom. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to three Mo+2.17+ and one In3+ atom. In the second S2- site, S2- is bonded in a 4-coordinate geometry to three Mo+2.17+ and one In3+ atom. In the third S2- site, S2- is bonded in a 4-coordinate geometry to four Mo+2.17+ and one In3+ atom. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to four Mo+2.17+ and one In3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Li12Mo5O17 by Materials Project

Li12Mo5O17 is Caswellsilverite-like structured and crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are twelve inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two MoO6 octahedra, corners with four LiO6 octahedra, edges with four MoO6 octahedra, and edges with eight LiO6 octahedra. The corner-sharing octahedra tilt angles range from 4–10°. There are a spread of Li–O bond distances ranging from 2.08–2.39 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two MoO6 octahedra, corners with four LiO6 octahedra, edges with four MoO6 octahedra, and edges with eight LiO6 octahedra. The corner-sharing octahedra tilt angles range from 3–10°. There are a spread of Li–O bond distances ranging from 2.06–2.37 Å. In the third Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two MoO6 octahedra, corners with four LiO6 octahedra, edges with four MoO6 octahedra, and edges with eight LiO6 octahedra. The corner-sharing octahedra tilt angles range from 3–13°. There are a spread of Li–O bond distances ranging from 2.09–2.32 Å. In the fourth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with three LiO6 octahedra, corners with three MoO6 octahedra, edges with three MoO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–10°. There are a spread of Li–O bond distances ranging from 2.10–2.34 Å. In the fifth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two MoO6 octahedra, corners with four LiO6 octahedra, edges with three MoO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 6–14°. There are a spread of Li–O bond distances ranging from 2.07–2.25 Å. In the sixth Li1+ site, Li1+ is bonded to six O2- atoms to form distorted LiO6 octahedra that share corners with two MoO6 octahedra, corners with four LiO6 octahedra, edges with five MoO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 1–17°. There are a spread of Li–O bond distances ranging from 1.97–2.44 Å. In the seventh Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two MoO6 octahedra, corners with four LiO6 octahedra, edges with five MoO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 0–18°. There are a spread of Li–O bond distances ranging from 2.02–2.34 Å. In the eighth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two MoO6 octahedra, corners with four LiO6 octahedra, edges with five MoO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 3–18°. There are a spread of Li–O bond distances ranging from 2.09–2.42 Å. In the ninth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with three LiO6 octahedra, corners with three MoO6 octahedra, edges with three MoO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 5–17°. There are a spread of Li–O bond distances ranging from 2.01–2.32 Å. In the tenth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share a cornercorner with one MoO6 octahedra, corners with five LiO6 octahedra, edges with four MoO6 octahedra, and edges with eight LiO6 octahedra. The corner-sharing octahedra tilt angles range from 7–15°. There are a spread of Li–O bond distances ranging from 2.03–2.31 Å. In the eleventh Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share a cornercorner with one MoO6 octahedra, corners with five LiO6 octahedra, edges with four MoO6 octahedra, and edges with eight LiO6 octahedra. The corner-sharing octahedra tilt angles range from 6–13°. There are a spread of Li–O bond distances ranging from 2.08–2.40 Å. In the twelfth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two MoO6 octahedra, corners with four LiO6 octahedra, edges with three MoO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 6–10°. There are a spread of Li–O bond distances ranging from 2.09–2.24 Å. There are five inequivalent Mo+4.40+ sites. In the first Mo+4.40+ site, Mo+4.40+ is bonded to six O2- atoms to form MoO6 octahedra that share a cornercorner with one MoO6 octahedra, corners with five LiO6 octahedra, edges with three MoO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–9°. There are a spread of Mo–O bond distances ranging from 1.97–2.17 Å. In the second Mo+4.40+ site, Mo+4.40+ is bonded to six O2- atoms to form MoO6 octahedra that share a cornercorner with one MoO6 octahedra, corners with five LiO6 octahedra, edges with two MoO6 octahedra, and edges with ten LiO6 octahedra. The corner-sharing octahedra tilt angles range from 5–10°. There are a spread of Mo–O bond distances ranging from 1.84–2.15 Å. In the third Mo+4.40+ site, Mo+4.40+ is bonded to six O2- atoms to form MoO6 octahedra that share a cornercorner with one MoO6 octahedra, corners with five LiO6 octahedra, edges with three MoO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–11°. There are a spread of Mo–O bond distances ranging from 1.94–2.16 Å. In the fourth Mo+4.40+ site, Mo+4.40+ is bonded to six O2- atoms to form MoO6 octahedra that share a cornercorner with one MoO6 octahedra, corners with five LiO6 octahedra, edges with two MoO6 octahedra, and edges with ten LiO6 octahedra. The corner-sharing octahedra tilt angles range from 5–12°. There are a spread of Mo–O bond distances ranging from 1.85–2.19 Å. In the fifth Mo+4.40+ site, Mo+4.40+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with two MoO6 octahedra, corners with four LiO6 octahedra, edges with three MoO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. There are a spread of Mo–O bond distances ranging from 1.94–2.18 Å. There are seventeen inequivalent O2- sites. In the first O2- site, O2- is bonded to five Li1+ and one Mo+4.40+ atom to form a mixture of edge and corner-sharing OLi5Mo octahedra. The corner-sharing octahedra tilt angles range from 2–12°. In the second O2- site, O2- is bonded to four Li1+ and two Mo+4.40+ atoms to form a mixture of edge and corner-sharing OLi4Mo2 octahedra. The corner-sharing octahedra tilt angles range from 3–12°. In the third O2- site, O2- is bonded to three Li1+ and three Mo+4.40+ atoms to form OLi3Mo3 octahedra that share corners with six OLi4Mo2 octahedra and edges with twelve OLi5Mo octahedra. The corner-sharing octahedra tilt angles range from 4–10°. In the fourth O2- site, O2- is bonded to four Li1+ and two Mo+4.40+ atoms to form a mixture of edge and corner-sharing OLi4Mo2 octahedra. The corner-sharing octahedra tilt angles range from 1–20°. In the fifth O2- site, O2- is bonded to three Li1+ and three Mo+4.40+ atoms to form a mixture of edge and corner-sharing OLi3Mo3 octahedra. The corner-sharing octahedra tilt angles range from 1–12°. In the sixth O2- site, O2- is bonded to four Li1+ and two Mo+4.40+ atoms to form OLi4Mo2 octahedra that share corners with six OLi3Mo3 octahedra and edges with twelve OLi5Mo octahedra. The corner-sharing octahedra tilt angles range from 0–20°. In the seventh O2- site, O2- is bonded to five Li1+ and one Mo+4.40+ atom to form OLi5Mo octahedra that share corners with six OLi4Mo2 octahedra and edges with twelve OLi5Mo octahedra. The corner-sharing octahedra tilt angles range from 4–10°. In the eighth O2- site, O2- is bonded to four Li1+ and two Mo+4.40+ atoms to form a mixture of edge and corner-sharing OLi4Mo2 octahedra. The corner-sharing octahedra tilt angles range from 7–19°. In the ninth O2- site, O2- is bonded to five Li1+ and one Mo+4.40+ atom to form a mixture of edge and corner-sharing OLi5Mo octahedra. The corner-sharing octahedra tilt angles range from 3–14°. In the tenth O2- site, O2- is bonded to four Li1+ and two Mo+4.40+ atoms to form OLi4Mo2 octahedra that share corners with six OLi4Mo2 octahedra and edges with twelve OLi5Mo octahedra. The corner-sharing octahedra tilt angles range from 3–17°. In the eleventh O2- site, O2- is bonded to five Li1+ and one Mo+4.40+ atom to form a mixture of edge and corner-sharing OLi5Mo octahedra. The corner-sharing octahedra tilt angles range from 0–11°. In the twelfth O2- site, O2- is bonded to three Li1+ and three Mo+4.40+ atoms to form a mixture of edge and corner-sharing OLi3Mo3 octahedra. The corner-sharing octahedra tilt angles range from 0–8°. In the thirteenth O2- site, O2- is bonded to four Li1+ and two Mo+4.40+ atoms to form OLi4Mo2 octahedra that share corners with six OLi3Mo3 octahedra and edges with twelve OLi5Mo octahedra. The corner-sharing octahedra tilt angles range from 3–14°. In the fourteenth O2- site, O2- is bonded to five Li1+ and one Mo+4.40+ atom to form OLi5Mo octahedra that share corners with six OLi5Mo octahedra and edges with twelve OLi4Mo2 octahedra. The corner-sharing octahedra tilt angles range from 3–13°. In the fifteenth O2- site, O2- is bonded to five Li1+ and one Mo+4.40+ atom to form a mixture of edge and corner-sharing OLi5Mo octahedra. The corner-sharing octahedra tilt angles range from 4–9°. In the sixteenth O2- site, O2- is bonded to five Li1+ and one Mo+4.40+ atom to form OLi5Mo octahedra that share corners with six OLi4Mo2 octahedra and edges with twelve OLi5Mo octahedra. The corner-sharing octahedra tilt angles range from 0–13°. In the seventeenth O2- site, O2- is bonded to four Li1+ and two equivalent Mo+4.40+ atoms to form a mixture of edge and corner-sharing OLi4Mo2 octahedra. The corner-sharing octahedra tilt angles range from 3–19°.

36 MATERIALS SCIENCE↗

Materials Data on Mo3(SeS)2 by Materials Project

Mo3(SeS)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Mo+2.67+ sites. In the first Mo+2.67+ site, Mo+2.67+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. All Mo–Se bond lengths are 2.56 Å. There are one shorter (2.43 Å) and one longer (2.44 Å) Mo–S bond lengths. In the second Mo+2.67+ site, Mo+2.67+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. Both Mo–Se bond lengths are 2.57 Å. There are a spread of Mo–S bond distances ranging from 2.43–2.45 Å. In the third Mo+2.67+ site, Mo+2.67+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. There are one shorter (2.54 Å) and one longer (2.55 Å) Mo–Se bond lengths. There are one shorter (2.44 Å) and two longer (2.45 Å) Mo–S bond lengths. In the fourth Mo+2.67+ site, Mo+2.67+ is bonded to two Se2- and three S2- atoms to form MoSe2S3 square pyramids that share corners with four MoSe2S3 square pyramids and edges with five MoSe3S2 square pyramids. There are one shorter (2.57 Å) and one longer (2.61 Å) Mo–Se bond lengths. There are two shorter (2.45 Å) and one longer (2.50 Å) Mo–S bond lengths. In the fifth Mo+2.67+ site, Mo+2.67+ is bonded to three Se2- and two S2- atoms to form a mixture of corner and edge-sharing MoSe3S2 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.55–2.61 Å. There are one shorter (2.42 Å) and one longer (2.50 Å) Mo–S bond lengths. In the sixth Mo+2.67+ site, Mo+2.67+ is bonded to two Se2- and three S2- atoms to form a mixture of corner and edge-sharing MoSe2S3 square pyramids. There are one shorter (2.56 Å) and one longer (2.57 Å) Mo–Se bond lengths. There are a spread of Mo–S bond distances ranging from 2.44–2.46 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 4-coordinate geometry to four Mo+2.67+ atoms. In the second Se2- site, Se2- is bonded in a 4-coordinate geometry to four Mo+2.67+ atoms. In the third Se2- site, Se2- is bonded in a 6-coordinate geometry to three Mo+2.67+ atoms. In the fourth Se2- site, Se2- is bonded in a 6-coordinate geometry to three Mo+2.67+ atoms. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to four Mo+2.67+ atoms. In the second S2- site, S2- is bonded in a 4-coordinate geometry to four Mo+2.67+ atoms. In the third S2- site, S2- is bonded in a 4-coordinate geometry to four Mo+2.67+ atoms. In the fourth S2- site, S2- is bonded in a 4-coordinate geometry to four Mo+2.67+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Mo8P6O49 by Materials Project

(Mo4P3O20)4(O2)9 crystallizes in the triclinic P-1 space group. The structure is three-dimensional and consists of four hydrogen peroxide molecules, one water molecule, and one Mo4P3O20 framework. In the Mo4P3O20 framework, there are four inequivalent Mo sites. In the first Mo site, Mo is bonded to five O atoms to form distorted MoO5 trigonal bipyramids that share corners with four PO4 tetrahedra. There are a spread of Mo–O bond distances ranging from 1.68–1.97 Å. In the second Mo site, Mo is bonded to five O atoms to form distorted MoO5 trigonal bipyramids that share corners with three PO4 tetrahedra. There are a spread of Mo–O bond distances ranging from 1.70–2.12 Å. In the third Mo site, Mo is bonded to four O atoms to form MoO4 tetrahedra that share corners with two PO4 tetrahedra. There are a spread of Mo–O bond distances ranging from 1.70–1.97 Å. In the fourth Mo site, Mo is bonded in a 6-coordinate geometry to six O atoms. There are a spread of Mo–O bond distances ranging from 1.72–2.27 Å. There are three inequivalent P sites. In the first P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one MoO4 tetrahedra and corners with two MoO5 trigonal bipyramids. There are a spread of P–O bond distances ranging from 1.47–1.61 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three MoO5 trigonal bipyramids. There are a spread of P–O bond distances ranging from 1.52–1.57 Å. In the third P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one MoO4 tetrahedra and corners with two MoO5 trigonal bipyramids. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. There are twenty inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one Mo atom. In the second O site, O is bonded in a bent 150 degrees geometry to one Mo and one P atom. In the third O site, O is bonded in a bent 150 degrees geometry to one Mo and one P atom. In the fourth O site, O is bonded in a bent 150 degrees geometry to one Mo and one P atom. In the fifth O site, O is bonded in a water-like geometry to two equivalent Mo atoms. In the sixth O site, O is bonded in a bent 150 degrees geometry to one Mo and one P atom. In the seventh O site, O is bonded in a single-bond geometry to one Mo atom. In the eighth O site, O is bonded in a single-bond geometry to one Mo atom. In the ninth O site, O is bonded in a distorted bent 120 degrees geometry to one Mo and one P atom. In the tenth O site, O is bonded in a single-bond geometry to one Mo atom. In the eleventh O site, O is bonded in a single-bond geometry to one Mo atom. In the twelfth O site, O is bonded in a distorted bent 120 degrees geometry to one Mo and one P atom. In the thirteenth O site, O is bonded in a single-bond geometry to one Mo atom. In the fourteenth O site, O is bonded in a bent 150 degrees geometry to one Mo and one P atom. In the fifteenth O site, O is bonded in a single-bond geometry to one Mo atom. In the sixteenth O site, O is bonded in a distorted single-bond geometry to one Mo and one P atom. In the seventeenth O site, O is bonded in a distorted bent 150 degrees geometry to one Mo and one P atom. In the eighteenth O site, O is bonded in a bent 150 degrees geometry to one Mo and one P atom. In the nineteenth O site, O is bonded in a single-bond geometry to one P atom. In the twentieth O site, O is bonded in a bent 150 degrees geometry to one Mo and one P atom.

36 MATERIALS SCIENCE↗

Materials Data on HfAlMo by Materials Project

HfMoAl crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are eight inequivalent Hf sites. In the first Hf site, Hf is bonded in a 12-coordinate geometry to four Hf, five Mo, and seven Al atoms. There are a spread of Hf–Hf bond distances ranging from 3.24–3.30 Å. There are a spread of Hf–Mo bond distances ranging from 3.10–3.14 Å. There are a spread of Hf–Al bond distances ranging from 3.08–3.17 Å. In the second Hf site, Hf is bonded in a 12-coordinate geometry to four Hf, seven Mo, and five Al atoms. There are one shorter (3.24 Å) and one longer (3.30 Å) Hf–Hf bond lengths. There are a spread of Hf–Mo bond distances ranging from 3.08–3.15 Å. There are one shorter (3.06 Å) and four longer (3.15 Å) Hf–Al bond lengths. In the third Hf site, Hf is bonded in a 12-coordinate geometry to four Hf, seven Mo, and five Al atoms. There are two shorter (3.24 Å) and one longer (3.30 Å) Hf–Hf bond lengths. There are a spread of Hf–Mo bond distances ranging from 3.08–3.15 Å. There are one shorter (3.06 Å) and four longer (3.15 Å) Hf–Al bond lengths. In the fourth Hf site, Hf is bonded in a 12-coordinate geometry to four Hf, five Mo, and seven Al atoms. The Hf–Hf bond length is 3.30 Å. There are a spread of Hf–Mo bond distances ranging from 3.10–3.14 Å. There are a spread of Hf–Al bond distances ranging from 3.08–3.17 Å. In the fifth Hf site, Hf is bonded in a 12-coordinate geometry to four Hf, five Mo, and seven Al atoms. There are two shorter (3.24 Å) and one longer (3.27 Å) Hf–Hf bond lengths. There are a spread of Hf–Mo bond distances ranging from 3.10–3.14 Å. There are a spread of Hf–Al bond distances ranging from 3.08–3.17 Å. In the sixth Hf site, Hf is bonded in a 12-coordinate geometry to four Hf, seven Mo, and five Al atoms. The Hf–Hf bond length is 3.24 Å. There are a spread of Hf–Mo bond distances ranging from 3.08–3.15 Å. There are one shorter (3.06 Å) and four longer (3.15 Å) Hf–Al bond lengths. In the seventh Hf site, Hf is bonded in a 12-coordinate geometry to four Hf, seven Mo, and five Al atoms. Both Hf–Hf bond lengths are 3.24 Å. There are a spread of Hf–Mo bond distances ranging from 3.08–3.15 Å. There are one shorter (3.06 Å) and four longer (3.15 Å) Hf–Al bond lengths. In the eighth Hf site, Hf is bonded in a 12-coordinate geometry to four Hf, five Mo, and seven Al atoms. There are a spread of Hf–Mo bond distances ranging from 3.10–3.14 Å. There are a spread of Hf–Al bond distances ranging from 3.08–3.17 Å. There are three inequivalent Mo sites. In the first Mo site, Mo is bonded to six Hf and six Al atoms to form MoHf6Al6 cuboctahedra that share corners with four equivalent AlHf6Al2Mo4 cuboctahedra, corners with fourteen MoHf6Al6 cuboctahedra, edges with six MoHf6Al6 cuboctahedra, faces with four equivalent MoHf6Al2Mo4 cuboctahedra, and faces with fourteen AlHf6Al2Mo4 cuboctahedra. There are a spread of Mo–Al bond distances ranging from 2.61–2.71 Å. In the second Mo site, Mo is bonded to six Hf, four Mo, and two equivalent Al atoms to form distorted MoHf6Al2Mo4 cuboctahedra that share corners with eight MoHf6Al6 cuboctahedra, corners with ten AlHf6Al2Mo4 cuboctahedra, edges with two equivalent MoHf6Al2Mo4 cuboctahedra, edges with four equivalent AlHf6Al4Mo2 cuboctahedra, faces with eight AlHf6Al2Mo4 cuboctahedra, and faces with ten MoHf6Al6 cuboctahedra. There are a spread of Mo–Mo bond distances ranging from 2.56–2.73 Å. Both Mo–Al bond lengths are 2.69 Å. In the third Mo site, Mo is bonded to six Hf, four equivalent Mo, and two equivalent Al atoms to form distorted MoHf6Al2Mo4 cuboctahedra that share corners with six MoHf6Al6 cuboctahedra, corners with twelve AlHf6Al2Mo4 cuboctahedra, edges with six MoHf6Al6 cuboctahedra, faces with eight equivalent MoHf6Al2Mo4 cuboctahedra, and faces with ten AlHf6Al2Mo4 cuboctahedra. Both Mo–Al bond lengths are 2.72 Å. There are two inequivalent Al sites. In the first Al site, Al is bonded to six Hf, four Mo, and two equivalent Al atoms to form distorted AlHf6Al2Mo4 cuboctahedra that share corners with four equivalent AlHf6Al4Mo2 cuboctahedra, corners with eight MoHf6Al6 cuboctahedra, edges with six equivalent AlHf6Al2Mo4 cuboctahedra, faces with eight AlHf6Al2Mo4 cuboctahedra, and faces with twelve MoHf6Al6 cuboctahedra. Both Al–Al bond lengths are 2.69 Å. In the second Al site, Al is bonded to six Hf, two equivalent Mo, and four Al atoms to form distorted AlHf6Al4Mo2 cuboctahedra that share corners with eight AlHf6Al2Mo4 cuboctahedra, corners with ten MoHf6Al2Mo4 cuboctahedra, edges with two equivalent AlHf6Al4Mo2 cuboctahedra, edges with four equivalent MoHf6Al2Mo4 cuboctahedra, faces with eight MoHf6Al6 cuboctahedra, and faces with ten AlHf6Al2Mo4 cuboctahedra. There are one shorter (2.58 Å) and one longer (2.70 Å) Al–Al bond lengths.

36 MATERIALS SCIENCE↗

Materials Data on Mo4P3 by Materials Project

Mo4P3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are eight inequivalent Mo+2.25+ sites. In the first Mo+2.25+ site, Mo+2.25+ is bonded to five P3- atoms to form MoP5 square pyramids that share corners with four equivalent MoP6 octahedra, corners with four MoP5 square pyramids, corners with four MoP5 trigonal bipyramids, edges with two equivalent MoP6 octahedra, edges with three MoP5 square pyramids, an edgeedge with one MoP5 trigonal bipyramid, and a faceface with one MoP6 octahedra. The corner-sharing octahedra tilt angles range from 45–57°. There are a spread of Mo–P bond distances ranging from 2.39–2.46 Å. In the second Mo+2.25+ site, Mo+2.25+ is bonded to six P3- atoms to form MoP6 octahedra that share corners with four equivalent MoP6 octahedra, corners with two equivalent MoP5 square pyramids, corners with five MoP5 trigonal bipyramids, edges with two equivalent MoP6 octahedra, edges with two equivalent MoP5 square pyramids, edges with two equivalent MoP5 trigonal bipyramids, a faceface with one MoP6 octahedra, and a faceface with one MoP5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 42–44°. There are a spread of Mo–P bond distances ranging from 2.46–2.65 Å. In the third Mo+2.25+ site, Mo+2.25+ is bonded to five P3- atoms to form MoP5 square pyramids that share corners with two equivalent MoP6 octahedra, corners with four MoP5 square pyramids, corners with three equivalent MoP5 trigonal bipyramids, an edgeedge with one MoP6 octahedra, and edges with eight MoP5 square pyramids. The corner-sharing octahedral tilt angles are 22°. There are a spread of Mo–P bond distances ranging from 2.44–2.55 Å. In the fourth Mo+2.25+ site, Mo+2.25+ is bonded to six P3- atoms to form MoP6 octahedra that share corners with four equivalent MoP6 octahedra, corners with six MoP5 square pyramids, corners with three MoP5 trigonal bipyramids, edges with four equivalent MoP6 octahedra, edges with three MoP5 square pyramids, a faceface with one MoP6 octahedra, and a faceface with one MoP5 square pyramid. The corner-sharing octahedra tilt angles range from 42–44°. There are a spread of Mo–P bond distances ranging from 2.42–2.67 Å. In the fifth Mo+2.25+ site, Mo+2.25+ is bonded to five P3- atoms to form distorted MoP5 square pyramids that share corners with two equivalent MoP6 octahedra, corners with four MoP5 square pyramids, corners with two equivalent MoP5 trigonal bipyramids, edges with two equivalent MoP6 octahedra, edges with five MoP5 square pyramids, and edges with three MoP5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 44°. There are a spread of Mo–P bond distances ranging from 2.39–2.57 Å. In the sixth Mo+2.25+ site, Mo+2.25+ is bonded to five P3- atoms to form distorted MoP5 trigonal bipyramids that share corners with four MoP6 octahedra, corners with five MoP5 square pyramids, corners with four MoP5 trigonal bipyramids, edges with two equivalent MoP5 square pyramids, edges with two equivalent MoP5 trigonal bipyramids, and a faceface with one MoP6 octahedra. The corner-sharing octahedra tilt angles range from 41–57°. There are a spread of Mo–P bond distances ranging from 2.39–2.74 Å. In the seventh Mo+2.25+ site, Mo+2.25+ is bonded in a distorted rectangular see-saw-like geometry to four P3- atoms. There are a spread of Mo–P bond distances ranging from 2.39–2.60 Å. In the eighth Mo+2.25+ site, Mo+2.25+ is bonded to five P3- atoms to form distorted MoP5 trigonal bipyramids that share corners with four MoP6 octahedra, corners with four MoP5 square pyramids, corners with two equivalent MoP5 trigonal bipyramids, edges with two equivalent MoP6 octahedra, edges with two MoP5 square pyramids, and edges with four MoP5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 44–48°. There are a spread of Mo–P bond distances ranging from 2.43–2.50 Å. There are six inequivalent P3- sites. In the first P3- site, P3- is bonded in a 7-coordinate geometry to seven Mo+2.25+ atoms. In the second P3- site, P3- is bonded in a 7-coordinate geometry to seven Mo+2.25+ atoms. In the third P3- site, P3- is bonded in a 7-coordinate geometry to seven Mo+2.25+ atoms. In the fourth P3- site, P3- is bonded in a 7-coordinate geometry to seven Mo+2.25+ atoms. In the fifth P3- site, P3- is bonded to six Mo+2.25+ atoms to form distorted edge-sharing PMo6 pentagonal pyramids. In the sixth P3- site, P3- is bonded in a 7-coordinate geometry to seven Mo+2.25+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Al17Mo4 by Materials Project

Al17Mo4 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are four inequivalent Mo sites. In the first Mo site, Mo is bonded in a 11-coordinate geometry to eleven Al atoms. There are a spread of Mo–Al bond distances ranging from 2.64–2.87 Å. In the second Mo site, Mo is bonded to twelve Al atoms to form MoAl12 cuboctahedra that share corners with five equivalent MoAl12 cuboctahedra, corners with five equivalent AlAl9Mo3 cuboctahedra, edges with four equivalent MoAl12 cuboctahedra, and faces with four equivalent AlAl9Mo3 cuboctahedra. There are a spread of Mo–Al bond distances ranging from 2.70–2.90 Å. In the third Mo site, Mo is bonded to twelve Al atoms to form MoAl12 cuboctahedra that share corners with five equivalent MoAl12 cuboctahedra, corners with five equivalent AlAl9Mo3 cuboctahedra, edges with four equivalent MoAl12 cuboctahedra, and faces with four equivalent AlAl9Mo3 cuboctahedra. There are a spread of Mo–Al bond distances ranging from 2.71–2.91 Å. In the fourth Mo site, Mo is bonded in a 11-coordinate geometry to eleven Al atoms. There are a spread of Mo–Al bond distances ranging from 2.64–2.87 Å. There are eighteen inequivalent Al sites. In the first Al site, Al is bonded in a 11-coordinate geometry to four Mo and seven Al atoms. There are a spread of Al–Al bond distances ranging from 2.59–2.92 Å. In the second Al site, Al is bonded in a distorted bent 150 degrees geometry to two equivalent Mo and four equivalent Al atoms. There are two shorter (2.71 Å) and two longer (2.78 Å) Al–Al bond lengths. In the third Al site, Al is bonded in a 2-coordinate geometry to two Mo and five Al atoms. There are a spread of Al–Al bond distances ranging from 2.67–2.93 Å. In the fourth Al site, Al is bonded in a distorted bent 150 degrees geometry to two equivalent Mo and four Al atoms. There are two shorter (2.71 Å) and two longer (2.79 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a distorted bent 150 degrees geometry to two equivalent Mo and four Al atoms. There are a spread of Al–Al bond distances ranging from 2.70–2.80 Å. In the sixth Al site, Al is bonded in a 3-coordinate geometry to three Mo and eight Al atoms. There are a spread of Al–Al bond distances ranging from 2.67–2.87 Å. In the seventh Al site, Al is bonded in a 12-coordinate geometry to three Mo and nine Al atoms. There are a spread of Al–Al bond distances ranging from 2.67–2.88 Å. In the eighth Al site, Al is bonded in a 11-coordinate geometry to four Mo and seven Al atoms. There are a spread of Al–Al bond distances ranging from 2.69–2.93 Å. In the ninth Al site, Al is bonded in a 2-coordinate geometry to two equivalent Mo and four Al atoms. There are one shorter (2.66 Å) and one longer (2.81 Å) Al–Al bond lengths. In the tenth Al site, Al is bonded to three equivalent Mo and nine Al atoms to form distorted AlAl9Mo3 cuboctahedra that share corners with five equivalent MoAl12 cuboctahedra, corners with five equivalent AlAl9Mo3 cuboctahedra, edges with two equivalent AlAl9Mo3 cuboctahedra, faces with three equivalent AlAl9Mo3 cuboctahedra, and faces with four equivalent MoAl12 cuboctahedra. There are a spread of Al–Al bond distances ranging from 2.81–2.90 Å. In the eleventh Al site, Al is bonded to three equivalent Mo and nine Al atoms to form distorted AlAl9Mo3 cuboctahedra that share corners with five equivalent MoAl12 cuboctahedra, corners with five equivalent AlAl9Mo3 cuboctahedra, edges with two equivalent AlAl9Mo3 cuboctahedra, faces with three equivalent AlAl9Mo3 cuboctahedra, and faces with four equivalent MoAl12 cuboctahedra. There are a spread of Al–Al bond distances ranging from 2.71–2.86 Å. In the twelfth Al site, Al is bonded in a 3-coordinate geometry to three Mo and eight Al atoms. There are a spread of Al–Al bond distances ranging from 2.70–2.80 Å. In the thirteenth Al site, Al is bonded in a 2-coordinate geometry to two Mo and five Al atoms. In the fourteenth Al site, Al is bonded in a 2-coordinate geometry to two equivalent Mo and four Al atoms. There are one shorter (2.67 Å) and one longer (2.83 Å) Al–Al bond lengths. In the fifteenth Al site, Al is bonded in a distorted bent 150 degrees geometry to two equivalent Mo and four equivalent Al atoms. In the sixteenth Al site, Al is bonded in a 3-coordinate geometry to three Mo and six Al atoms. In the seventeenth Al site, Al is bonded in a 3-coordinate geometry to three Mo and six Al atoms. The Al–Al bond length is 2.80 Å. In the eighteenth Al site, Al is bonded in a 12-coordinate geometry to three Mo and nine Al atoms.

36 MATERIALS SCIENCE↗

Materials Data on Sr20Fe3Co7(MoO6)10 by Materials Project

Sr20Fe3Co7(MoO6)10 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twenty inequivalent Sr sites. In the first Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, faces with two FeO6 octahedra, faces with two CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.61–3.10 Å. In the second Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, faces with two FeO6 octahedra, faces with two CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.60–3.08 Å. In the third Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.57–3.08 Å. In the fourth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.61–3.07 Å. In the fifth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.62–3.06 Å. In the sixth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, faces with two FeO6 octahedra, faces with two CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.62–3.10 Å. In the seventh Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.57–3.08 Å. In the eighth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.58–3.10 Å. In the ninth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, faces with four MoO6 octahedra, and faces with four CoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.62–3.07 Å. In the tenth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.63–3.05 Å. In the eleventh Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.61–3.11 Å. In the twelfth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.59–3.09 Å. In the thirteenth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, faces with four MoO6 octahedra, and faces with four CoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.62–3.10 Å. In the fourteenth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, faces with two FeO6 octahedra, faces with two CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.60–3.05 Å. In the fifteenth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.61–3.08 Å. In the sixteenth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.61–3.13 Å. In the seventeenth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.63–3.09 Å. In the eighteenth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, faces with two FeO6 octahedra, faces with two CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.61–3.09 Å. In the nineteenth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, a faceface with one FeO6 octahedra, faces with three CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.61–3.08 Å. In the twentieth Sr site, Sr is bonded to twelve O atoms to form distorted SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, faces with two FeO6 octahedra, faces with two CoO6 octahedra, and faces with four MoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.58–3.07 Å. There are ten inequivalent Mo sites. In the first Mo site, Mo is bonded to six O atoms to form MoO6 octahedra that share corners with two FeO6 octahedra, corners with four CoO6 octahedra, and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–18°. There are a spread of Mo–O bond distances ranging from 1.93–1.98 Å. In the second Mo site, Mo is bonded to six O atoms to form MoO6 octahedra that share corners with three FeO6 octahedra, corners with three CoO6 octahedra, and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–19°. There are a spread of Mo–O bond distances ranging from 1.92–2.07 Å. In the third Mo site, Mo is bonded to six O atoms to form MoO6 octahedra that share a cornercorner with one FeO6 octahedra, corners with five CoO6 octahedra, and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–19°. There are a spread of Mo–O bond distances ranging from 1.92–1.99 Å. In the fourth Mo site, Mo is bonded to six O atoms to form MoO6 octahedra that share a cornercorner with one FeO6 octahedra, corners with five CoO6 octahedra, and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–17°. There are a spread of Mo–O bond distances ranging from 1.93–1.98 Å. In the fifth Mo site, Mo is bonded to six O atoms to form MoO6 octahedra that share corners with two FeO6 octahedra, corners with four CoO6 octahedra, and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–18°. There are a spread of Mo–O bond distances ranging from 1.92–2.00 Å. In the sixth Mo site, Mo is bonded to six O atoms to form MoO6 octahedra that share corners with two FeO6 octahedra, corners with four CoO6 octahedra, and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–17°. There are a spread of Mo–O bond distances ranging from 1.92–1.98 Å. In the seventh Mo site, Mo is bonded to six O atoms to form MoO6 octahedra that share a cornercorner with one FeO6 octahedra, corners with five CoO6 octahedra, and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–17°. There are a spread of Mo–O bond distances ranging from 1.95–2.06 Å. In the eighth Mo site, Mo is bonded to six O atoms to form MoO6 octahedra that share corners with two FeO6 octahedra, corners with four CoO6 octahedra, and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–18°. There are a spread of Mo–O bond distances ranging from 1.92–1.98 Å. In the ninth Mo site, Mo is bonded to six O atoms to form MoO6 octahedra that share corners with two FeO6 octahedra, corners with four CoO6 octahedra, and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–18°. There are a spread of Mo–O bond distances ranging from 1.92–2.00 Å. In the tenth Mo site, Mo is bonded to six O atoms to form MoO6 octahedra that share corners with two FeO6 octahedra, corners with four CoO6 octahedra, and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–18°. There are a spread of Mo–O bond distances ranging from 1.94–2.05 Å. There are three inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with six MoO6 octahedra and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–19°. There are a spread of Fe–O bond distances ranging from 1.96–2.08 Å. In the second Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with six MoO6 octahedra and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–17°. There are a spread of Fe–O bond distances ranging from 1.97–2.07 Å. In the third Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with six MoO6 octahedra and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–17°. There are a spread of Fe–O bond distances ranging from 1.97–2.06 Å. There are seven inequivalent Co sites. In the first Co site, Co is bonded to six O atoms to form CoO6 octahedra that share corners with six MoO6 octahedra and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–17°. There are a spread of Co–O bond distances ranging from 2.02–2.11 Å. In the second Co site, Co is bonded to six O atoms to form CoO6 octahedra that share corners with six MoO6 octahedra and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–18°. There are a spread of Co–O bond distances ranging from 2.07–2.11 Å. In the third Co site, Co is bonded to six O atoms to form CoO6 octahedra that share corners with six MoO6 octahedra and faces with eight SrO12 cuboctahedra. The corner-sharing

36 MATERIALS SCIENCE↗

Materials Data on Zr3SiMo8 by Materials Project

Zr3Mo8Si is Hexagonal Laves-derived structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are three inequivalent Zr sites. In the first Zr site, Zr is bonded in a 12-coordinate geometry to twelve Mo and three equivalent Si atoms. There are a spread of Zr–Mo bond distances ranging from 3.00–3.14 Å. All Zr–Si bond lengths are 3.27 Å. In the second Zr site, Zr is bonded in a 12-coordinate geometry to twelve Mo atoms. There are three shorter (3.11 Å) and nine longer (3.15 Å) Zr–Mo bond lengths. In the third Zr site, Zr is bonded in a 12-coordinate geometry to twelve Mo and one Si atom. There are a spread of Zr–Mo bond distances ranging from 3.12–3.15 Å. The Zr–Si bond length is 3.20 Å. There are four inequivalent Mo sites. In the first Mo site, Mo is bonded to three equivalent Zr, six Mo, and three equivalent Si atoms to form MoZr3Si3Mo6 cuboctahedra that share corners with twelve MoZr4Si2Mo6 cuboctahedra, edges with six equivalent MoZr3Si3Mo6 cuboctahedra, and faces with twenty MoZr6Mo6 cuboctahedra. There are three shorter (2.63 Å) and three longer (2.65 Å) Mo–Mo bond lengths. All Mo–Si bond lengths are 3.15 Å. In the second Mo site, Mo is bonded to six Zr and six Mo atoms to form MoZr6Mo6 cuboctahedra that share corners with twelve MoZr5SiMo6 cuboctahedra, edges with six equivalent MoZr6Mo6 cuboctahedra, and faces with twenty MoZr3Si3Mo6 cuboctahedra. There are three shorter (2.68 Å) and three longer (2.72 Å) Mo–Mo bond lengths. In the third Mo site, Mo is bonded to four Zr, six Mo, and two equivalent Si atoms to form MoZr4Si2Mo6 cuboctahedra that share corners with eighteen MoZr3Si3Mo6 cuboctahedra, edges with six MoZr5SiMo6 cuboctahedra, and faces with eighteen MoZr3Si3Mo6 cuboctahedra. There are two shorter (2.62 Å) and two longer (2.75 Å) Mo–Mo bond lengths. Both Mo–Si bond lengths are 3.10 Å. In the fourth Mo site, Mo is bonded to five Zr, six Mo, and one Si atom to form MoZr5SiMo6 cuboctahedra that share corners with eighteen MoZr3Si3Mo6 cuboctahedra, edges with six MoZr4Si2Mo6 cuboctahedra, and faces with eighteen MoZr3Si3Mo6 cuboctahedra. There are two shorter (2.62 Å) and two longer (2.75 Å) Mo–Mo bond lengths. The Mo–Si bond length is 3.07 Å. Si is bonded in a 1-coordinate geometry to four Zr and twelve Mo atoms.

36 MATERIALS SCIENCE↗

Materials Data on NaMo6O17 by Materials Project

NaMo6O17 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.26–2.53 Å. There are six inequivalent Mo+5.50+ sites. In the first Mo+5.50+ site, Mo+5.50+ is bonded to four O2- atoms to form corner-sharing MoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 30–39°. There are a spread of Mo–O bond distances ranging from 1.74–1.82 Å. In the second Mo+5.50+ site, Mo+5.50+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with five MoO6 octahedra and a cornercorner with one MoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 2–17°. There are a spread of Mo–O bond distances ranging from 1.94–2.11 Å. In the third Mo+5.50+ site, Mo+5.50+ is bonded to six O2- atoms to form distorted corner-sharing MoO6 octahedra. The corner-sharing octahedra tilt angles range from 2–15°. There are a spread of Mo–O bond distances ranging from 1.79–2.18 Å. In the fourth Mo+5.50+ site, Mo+5.50+ is bonded to four O2- atoms to form corner-sharing MoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 17–29°. There are a spread of Mo–O bond distances ranging from 1.75–1.81 Å. In the fifth Mo+5.50+ site, Mo+5.50+ is bonded to six O2- atoms to form distorted MoO6 octahedra that share corners with four MoO6 octahedra and corners with two equivalent MoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 1–12°. There are a spread of Mo–O bond distances ranging from 1.79–2.18 Å. In the sixth Mo+5.50+ site, Mo+5.50+ is bonded to six O2- atoms to form distorted MoO6 octahedra that share corners with three MoO6 octahedra and corners with three equivalent MoO4 tetrahedra. The corner-sharing octahedra tilt angles range from 1–17°. There are a spread of Mo–O bond distances ranging from 1.79–2.18 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to two Mo+5.50+ atoms. In the second O2- site, O2- is bonded in a distorted linear geometry to two Mo+5.50+ atoms. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Na1+ and one Mo+5.50+ atom. In the fourth O2- site, O2- is bonded in a distorted linear geometry to two Mo+5.50+ atoms. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to two Mo+5.50+ atoms. In the sixth O2- site, O2- is bonded in a distorted linear geometry to two Mo+5.50+ atoms. In the seventh O2- site, O2- is bonded in a distorted linear geometry to two Mo+5.50+ atoms. In the eighth O2- site, O2- is bonded in a distorted linear geometry to two Mo+5.50+ atoms. In the ninth O2- site, O2- is bonded in a linear geometry to one Na1+ and one Mo+5.50+ atom. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+ and two Mo+5.50+ atoms. In the eleventh O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+ and two Mo+5.50+ atoms. In the twelfth O2- site, O2- is bonded in a distorted linear geometry to two Mo+5.50+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Hf3SiMo8 by Materials Project

Hf3Mo8Si is Hexagonal Laves-derived structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are three inequivalent Hf sites. In the first Hf site, Hf is bonded in a 12-coordinate geometry to twelve Mo and three equivalent Si atoms. There are three shorter (3.00 Å) and nine longer (3.12 Å) Hf–Mo bond lengths. All Hf–Si bond lengths are 3.26 Å. In the second Hf site, Hf is bonded in a 12-coordinate geometry to twelve Mo atoms. There are three shorter (3.09 Å) and nine longer (3.13 Å) Hf–Mo bond lengths. In the third Hf site, Hf is bonded in a 12-coordinate geometry to twelve Mo and one Si atom. There are a spread of Hf–Mo bond distances ranging from 3.09–3.14 Å. The Hf–Si bond length is 3.19 Å. There are four inequivalent Mo sites. In the first Mo site, Mo is bonded to three equivalent Hf, six Mo, and three equivalent Si atoms to form MoHf3Si3Mo6 cuboctahedra that share corners with twelve MoHf4Si2Mo6 cuboctahedra, edges with six equivalent MoHf3Si3Mo6 cuboctahedra, and faces with twenty MoHf6Mo6 cuboctahedra. There are three shorter (2.63 Å) and three longer (2.64 Å) Mo–Mo bond lengths. All Mo–Si bond lengths are 3.14 Å. In the second Mo site, Mo is bonded to six Hf and six Mo atoms to form MoHf6Mo6 cuboctahedra that share corners with twelve MoHf5SiMo6 cuboctahedra, edges with six equivalent MoHf6Mo6 cuboctahedra, and faces with twenty MoHf3Si3Mo6 cuboctahedra. There are three shorter (2.67 Å) and three longer (2.70 Å) Mo–Mo bond lengths. In the third Mo site, Mo is bonded to four Hf, six Mo, and two equivalent Si atoms to form MoHf4Si2Mo6 cuboctahedra that share corners with eighteen MoHf3Si3Mo6 cuboctahedra, edges with six MoHf5SiMo6 cuboctahedra, and faces with eighteen MoHf3Si3Mo6 cuboctahedra. There are two shorter (2.60 Å) and two longer (2.74 Å) Mo–Mo bond lengths. Both Mo–Si bond lengths are 3.09 Å. In the fourth Mo site, Mo is bonded to five Hf, six Mo, and one Si atom to form MoHf5SiMo6 cuboctahedra that share corners with eighteen MoHf3Si3Mo6 cuboctahedra, edges with six MoHf4Si2Mo6 cuboctahedra, and faces with eighteen MoHf3Si3Mo6 cuboctahedra. There are two shorter (2.61 Å) and two longer (2.74 Å) Mo–Mo bond lengths. The Mo–Si bond length is 3.06 Å. Si is bonded in a 1-coordinate geometry to four Hf and twelve Mo atoms.

36 MATERIALS SCIENCE↗

Materials Data on Hf3GeMo8 by Materials Project

Hf3Mo8Ge is Hexagonal Laves-derived structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are three inequivalent Hf sites. In the first Hf site, Hf is bonded in a 12-coordinate geometry to twelve Mo and three equivalent Ge atoms. There are a spread of Hf–Mo bond distances ranging from 3.03–3.14 Å. All Hf–Ge bond lengths are 3.27 Å. In the second Hf site, Hf is bonded in a 12-coordinate geometry to twelve Mo atoms. There are three shorter (3.10 Å) and nine longer (3.14 Å) Hf–Mo bond lengths. In the third Hf site, Hf is bonded in a 12-coordinate geometry to twelve Mo and one Ge atom. There are a spread of Hf–Mo bond distances ranging from 3.08–3.15 Å. The Hf–Ge bond length is 3.22 Å. There are four inequivalent Mo sites. In the first Mo site, Mo is bonded to three equivalent Hf, six Mo, and three equivalent Ge atoms to form MoHf3Ge3Mo6 cuboctahedra that share corners with twelve MoHf4Ge2Mo6 cuboctahedra, edges with six equivalent MoHf3Ge3Mo6 cuboctahedra, and faces with twenty MoHf6Mo6 cuboctahedra. There are three shorter (2.65 Å) and three longer (2.67 Å) Mo–Mo bond lengths. All Mo–Ge bond lengths are 3.15 Å. In the second Mo site, Mo is bonded to six Hf and six Mo atoms to form MoHf6Mo6 cuboctahedra that share corners with twelve MoHf5GeMo6 cuboctahedra, edges with six equivalent MoHf6Mo6 cuboctahedra, and faces with twenty MoHf3Ge3Mo6 cuboctahedra. There are three shorter (2.68 Å) and three longer (2.70 Å) Mo–Mo bond lengths. In the third Mo site, Mo is bonded to four Hf, six Mo, and two equivalent Ge atoms to form MoHf4Ge2Mo6 cuboctahedra that share corners with eighteen MoHf3Ge3Mo6 cuboctahedra, edges with six MoHf5GeMo6 cuboctahedra, and faces with eighteen MoHf3Ge3Mo6 cuboctahedra. There are two shorter (2.60 Å) and two longer (2.75 Å) Mo–Mo bond lengths. Both Mo–Ge bond lengths are 3.10 Å. In the fourth Mo site, Mo is bonded to five Hf, six Mo, and one Ge atom to form MoHf5GeMo6 cuboctahedra that share corners with eighteen MoHf3Ge3Mo6 cuboctahedra, edges with six MoHf4Ge2Mo6 cuboctahedra, and faces with eighteen MoHf3Ge3Mo6 cuboctahedra. There are two shorter (2.62 Å) and two longer (2.74 Å) Mo–Mo bond lengths. The Mo–Ge bond length is 3.09 Å. Ge is bonded in a 4-coordinate geometry to four Hf and twelve Mo atoms.

36 MATERIALS SCIENCE↗

Materials Data on Li11(MoO2)12 by Materials Project

Li11(MoO2)12 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are seven inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six MoO6 octahedra, edges with five LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 2–12°. There are a spread of Li–O bond distances ranging from 2.19–2.40 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six MoO6 octahedra, edges with six LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 3–9°. There are a spread of Li–O bond distances ranging from 2.22–2.31 Å. In the third Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six MoO6 octahedra, edges with six LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 2–10°. There are a spread of Li–O bond distances ranging from 2.22–2.28 Å. In the fourth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six MoO6 octahedra, edges with five LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 3–11°. There are a spread of Li–O bond distances ranging from 2.11–2.47 Å. In the fifth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six MoO6 octahedra, edges with five LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 1–12°. There are a spread of Li–O bond distances ranging from 2.14–2.49 Å. In the sixth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six MoO6 octahedra, edges with six LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 5–6°. There are a spread of Li–O bond distances ranging from 2.22–2.35 Å. In the seventh Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six MoO6 octahedra, edges with six LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 3–5°. There are a spread of Li–O bond distances ranging from 2.16–2.34 Å. There are six inequivalent Mo+3.08+ sites. In the first Mo+3.08+ site, Mo+3.08+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with five LiO6 octahedra, edges with six LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 3–6°. There are a spread of Mo–O bond distances ranging from 2.12–2.22 Å. In the second Mo+3.08+ site, Mo+3.08+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with five LiO6 octahedra, edges with five LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 5–12°. There are a spread of Mo–O bond distances ranging from 2.14–2.21 Å. In the third Mo+3.08+ site, Mo+3.08+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with five LiO6 octahedra, edges with six LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 2–11°. There are a spread of Mo–O bond distances ranging from 2.13–2.21 Å. In the fourth Mo+3.08+ site, Mo+3.08+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with six LiO6 octahedra, edges with five LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 3–12°. There are a spread of Mo–O bond distances ranging from 2.17–2.21 Å. In the fifth Mo+3.08+ site, Mo+3.08+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with six LiO6 octahedra, edges with five LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 5–11°. There are a spread of Mo–O bond distances ranging from 2.17–2.23 Å. In the sixth Mo+3.08+ site, Mo+3.08+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with six LiO6 octahedra, edges with six LiO6 octahedra, and edges with six MoO6 octahedra. The corner-sharing octahedra tilt angles range from 1–6°. There are a spread of Mo–O bond distances ranging from 2.12–2.17 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded to two Li1+ and three Mo+3.08+ atoms to form OLi2Mo3 square pyramids that share corners with four OLi3Mo3 octahedra, corners with five OLi2Mo3 square pyramids, and edges with eight OLi3Mo3 octahedra. The corner-sharing octahedra tilt angles range from 2–10°. In the second O2- site, O2- is bonded to three Li1+ and three Mo+3.08+ atoms to form OLi3Mo3 octahedra that share corners with four OLi3Mo3 octahedra, corners with two OLi2Mo3 square pyramids, edges with ten OLi3Mo3 octahedra, and edges with two equivalent OLi2Mo3 square pyramids. The corner-sharing octahedra tilt angles range from 0–3°. In the third O2- site, O2- is bonded to three Li1+ and three Mo+3.08+ atoms to form OLi3Mo3 octahedra that share corners with four OLi3Mo3 octahedra, corners with two OLi2Mo3 square pyramids, edges with ten OLi3Mo3 octahedra, and edges with two OLi2Mo3 square pyramids. The corner-sharing octahedra tilt angles range from 0–4°. In the fourth O2- site, O2- is bonded to three Li1+ and three Mo+3.08+ atoms to form OLi3Mo3 octahedra that share corners with four OLi3Mo3 octahedra, corners with two OLi2Mo3 square pyramids, edges with ten OLi3Mo3 octahedra, and edges with two OLi2Mo3 square pyramids. The corner-sharing octahedra tilt angles range from 0–4°. In the fifth O2- site, O2- is bonded to three Li1+ and three Mo+3.08+ atoms to form OLi3Mo3 octahedra that share corners with four OLi3Mo3 octahedra, corners with two OLi2Mo3 square pyramids, edges with eleven OLi3Mo3 octahedra, and an edgeedge with one OLi2Mo3 square pyramid. The corner-sharing octahedra tilt angles range from 0–4°. In the sixth O2- site, O2- is bonded to two Li1+ and three Mo+3.08+ atoms to form OLi2Mo3 square pyramids that share corners with four OLi3Mo3 octahedra, corners with five OLi2Mo3 square pyramids, edges with seven OLi3Mo3 octahedra, and an edgeedge with one OLi2Mo3 square pyramid. The corner-sharing octahedra tilt angles range from 3–7°. In the seventh O2- site, O2- is bonded to three Li1+ and three Mo+3.08+ atoms to form OLi3Mo3 octahedra that share corners with five OLi3Mo3 octahedra, a cornercorner with one OLi2Mo3 square pyramid, edges with eight OLi3Mo3 octahedra, and edges with four OLi2Mo3 square pyramids. The corner-sharing octahedra tilt angles range from 0–8°. In the eighth O2- site, O2- is bonded to three Li1+ and three Mo+3.08+ atoms to form OLi3Mo3 octahedra that share corners with five OLi3Mo3 octahedra, a cornercorner with one OLi2Mo3 square pyramid, edges with eight OLi3Mo3 octahedra, and edges with four OLi2Mo3 square pyramids. The corner-sharing octahedra tilt angles range from 0–10°. In the ninth O2- site, O2- is bonded to three Li1+ and three Mo+3.08+ atoms to form OLi3Mo3 octahedra that share corners with five OLi3Mo3 octahedra, a cornercorner with one OLi2Mo3 square pyramid, edges with nine OLi3Mo3 octahedra, and edges with three OLi2Mo3 square pyramids. The corner-sharing octahedra tilt angles range from 0–10°. In the tenth O2- site, O2- is bonded to three Li1+ and three Mo+3.08+ atoms to form OLi3Mo3 octahedra that share corners with five OLi3Mo3 octahedra, a cornercorner with one OLi2Mo3 square pyramid, edges with eleven OLi3Mo3 octahedra, and an edgeedge with one OLi2Mo3 square pyramid. The corner-sharing octahedra tilt angles range from 0–3°. In the eleventh O2- site, O2- is bonded to three Li1+ and three Mo+3.08+ atoms to form OLi3Mo3 octahedra that share corners with five OLi3Mo3 octahedra, a cornercorner with one OLi2Mo3 square pyramid, edges with eight OLi3Mo3 octahedra, and edges with four OLi2Mo3 square pyramids. The corner-sharing octahedra tilt angles range from 0–3°. In the twelfth O2- site, O2- is bonded to two Li1+ and three Mo+3.08+ atoms to form OLi2Mo3 square pyramids that share corners with five OLi3Mo3 octahedra, corners with four OLi2Mo3 square pyramids, and edges with eight OLi3Mo3 octahedra. The corner-sharing octahedra tilt angles range from 3–8°.

36 MATERIALS SCIENCE↗