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Materials Data on Ba6Sr2CoCu7O24 by Materials Project

Ba6Sr2CoCu7O24 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Ba sites. In the first Ba site, Ba is bonded to twelve O atoms to form BaO12 cuboctahedra that share corners with four equivalent SrO12 cuboctahedra, corners with eight BaO12 cuboctahedra, faces with two equivalent SrO12 cuboctahedra, faces with four BaO12 cuboctahedra, a faceface with one CoO6 octahedra, and faces with seven CuO6 octahedra. There are a spread of Ba–O bond distances ranging from 2.80–2.91 Å. In the second Ba site, Ba is bonded to twelve O atoms to form BaO12 cuboctahedra that share corners with four equivalent SrO12 cuboctahedra, corners with eight equivalent BaO12 cuboctahedra, faces with six BaO12 cuboctahedra, a faceface with one CoO6 octahedra, and faces with seven CuO6 octahedra. There are a spread of Ba–O bond distances ranging from 2.82–2.91 Å. Sr is bonded to twelve O atoms to form SrO12 cuboctahedra that share corners with twelve BaO12 cuboctahedra, faces with two equivalent SrO12 cuboctahedra, faces with four equivalent BaO12 cuboctahedra, a faceface with one CoO6 octahedra, and faces with seven CuO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.70–2.80 Å. Co is bonded to six O atoms to form CoO6 octahedra that share corners with six CuO6 octahedra, faces with two equivalent SrO12 cuboctahedra, and faces with six BaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–3°. There are a spread of Co–O bond distances ranging from 1.92–1.96 Å. There are five inequivalent Cu sites. In the first Cu site, Cu is bonded to six O atoms to form CuO6 octahedra that share corners with six CuO6 octahedra, faces with two equivalent SrO12 cuboctahedra, and faces with six BaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–6°. There are two shorter (2.00 Å) and four longer (2.01 Å) Cu–O bond lengths. In the second Cu site, Cu is bonded to six O atoms to form CuO6 octahedra that share corners with two equivalent CoO6 octahedra, corners with four CuO6 octahedra, faces with two equivalent SrO12 cuboctahedra, and faces with six BaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–6°. There are a spread of Cu–O bond distances ranging from 1.98–2.06 Å. In the third Cu site, Cu is bonded to six O atoms to form CuO6 octahedra that share corners with six CuO6 octahedra, faces with two equivalent SrO12 cuboctahedra, and faces with six BaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–6°. There is four shorter (1.99 Å) and two longer (2.00 Å) Cu–O bond length. In the fourth Cu site, Cu is bonded to six O atoms to form CuO6 octahedra that share corners with six CuO6 octahedra, faces with two equivalent SrO12 cuboctahedra, and faces with six BaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–6°. There are a spread of Cu–O bond distances ranging from 2.00–2.02 Å. In the fifth Cu site, Cu is bonded to six O atoms to form CuO6 octahedra that share corners with two equivalent CoO6 octahedra, corners with four equivalent CuO6 octahedra, faces with two equivalent SrO12 cuboctahedra, and faces with six BaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–6°. There are four shorter (1.98 Å) and two longer (2.05 Å) Cu–O bond lengths. There are eleven inequivalent O sites. In the first O site, O is bonded to three Ba, one Sr, and two Cu atoms to form distorted OBa3SrCu2 octahedra that share corners with ten OBa3SrCu2 octahedra, edges with four equivalent OBa3SrCu2 octahedra, and faces with eight OBa2Sr2Cu2 octahedra. The corner-sharing octahedra tilt angles range from 5–60°. In the second O site, O is bonded to three Ba, one Sr, and two Cu atoms to form distorted OBa3SrCu2 octahedra that share corners with eighteen OBa3SrCu2 octahedra, edges with two equivalent OBa3SrCu2 octahedra, and faces with six OBa2Sr2Cu2 octahedra. The corner-sharing octahedra tilt angles range from 1–63°. In the third O site, O is bonded in a distorted linear geometry to three Ba, one Sr, one Co, and one Cu atom. In the fourth O site, O is bonded to two equivalent Ba, two equivalent Sr, and two Cu atoms to form distorted OBa2Sr2Cu2 octahedra that share corners with twelve OBa3SrCu2 octahedra, edges with two equivalent OBa2Sr2Cu2 octahedra, and faces with seven OBa3SrCu2 octahedra. The corner-sharing octahedra tilt angles range from 3–61°. In the fifth O site, O is bonded in a distorted linear geometry to two equivalent Ba, two equivalent Sr, one Co, and one Cu atom. In the sixth O site, O is bonded to four Ba and two Cu atoms to form distorted OBa4Cu2 octahedra that share corners with sixteen OBa3SrCu2 octahedra, edges with four OBa4CoCu octahedra, and faces with seven OBa3SrCu2 octahedra. The corner-sharing octahedra tilt angles range from 1–61°. In the seventh O site, O is bonded to four Ba, one Co, and one Cu atom to form distorted OBa4CoCu octahedra that share corners with eighteen OBa3SrCu2 octahedra, edges with four OBa4Cu2 octahedra, and faces with five OBa3SrCu2 octahedra. The corner-sharing octahedra tilt angles range from 2–63°. In the eighth O site, O is bonded to two equivalent Ba, two equivalent Sr, and two Cu atoms to form distorted OBa2Sr2Cu2 octahedra that share corners with twelve OBa3SrCu2 octahedra, edges with two equivalent OBa2Sr2Cu2 octahedra, and faces with seven OBa3SrCu2 octahedra. The corner-sharing octahedra tilt angles range from 3–60°. In the ninth O site, O is bonded in a distorted linear geometry to two equivalent Ba, two equivalent Sr, and two Cu atoms. In the tenth O site, O is bonded to four Ba and two Cu atoms to form distorted OBa4Cu2 octahedra that share corners with sixteen OBa3SrCu2 octahedra, edges with four OBa4Cu2 octahedra, and faces with seven OBa3SrCu2 octahedra. The corner-sharing octahedra tilt angles range from 2–61°. In the eleventh O site, O is bonded to four Ba and two Cu atoms to form distorted OBa4Cu2 octahedra that share corners with eighteen OBa3SrCu2 octahedra, edges with four OBa4CoCu octahedra, and faces with five OBa3SrCu2 octahedra. The corner-sharing octahedra tilt angles range from 1–62°.

36 MATERIALS SCIENCE↗

Materials Data on Cu6SnGe by Materials Project

Cu6SnGe crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. there are four inequivalent Cu sites. In the first Cu site, Cu is bonded to eight Cu, two equivalent Sn, and two equivalent Ge atoms to form distorted CuCu8Sn2Ge2 cuboctahedra that share corners with four equivalent GeCu12 cuboctahedra, corners with fourteen CuCu8Sn2Ge2 cuboctahedra, edges with two equivalent GeCu12 cuboctahedra, edges with four equivalent SnCu12 cuboctahedra, edges with twelve CuCu8Sn2Ge2 cuboctahedra, faces with two equivalent SnCu12 cuboctahedra, faces with two equivalent GeCu12 cuboctahedra, and faces with sixteen CuCu8Sn2Ge2 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.60–2.94 Å. Both Cu–Sn bond lengths are 2.71 Å. There are one shorter (2.63 Å) and one longer (2.69 Å) Cu–Ge bond lengths. In the second Cu site, Cu is bonded to eight Cu, two equivalent Sn, and two equivalent Ge atoms to form distorted CuCu8Sn2Ge2 cuboctahedra that share corners with four equivalent SnCu12 cuboctahedra, corners with fourteen CuCu8Sn2Ge2 cuboctahedra, edges with two equivalent SnCu12 cuboctahedra, edges with four equivalent GeCu12 cuboctahedra, edges with twelve CuCu8Sn2Ge2 cuboctahedra, faces with two equivalent SnCu12 cuboctahedra, faces with two equivalent GeCu12 cuboctahedra, and faces with sixteen CuCu8Sn2Ge2 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.60–2.94 Å. There are one shorter (2.72 Å) and one longer (2.77 Å) Cu–Sn bond lengths. Both Cu–Ge bond lengths are 2.62 Å. In the third Cu site, Cu is bonded to eight Cu, two equivalent Sn, and two equivalent Ge atoms to form CuCu8Sn2Ge2 cuboctahedra that share corners with eight equivalent SnCu12 cuboctahedra, corners with ten CuCu8Sn2Ge2 cuboctahedra, edges with eighteen CuCu8Sn2Ge2 cuboctahedra, faces with two equivalent SnCu12 cuboctahedra, faces with four equivalent GeCu12 cuboctahedra, and faces with fourteen CuCu8Sn2Ge2 cuboctahedra. Both Cu–Sn bond lengths are 2.77 Å. Both Cu–Ge bond lengths are 2.63 Å. In the fourth Cu site, Cu is bonded to eight Cu, two equivalent Sn, and two equivalent Ge atoms to form distorted CuCu8Sn2Ge2 cuboctahedra that share corners with eight equivalent GeCu12 cuboctahedra, corners with ten CuCu8Sn2Ge2 cuboctahedra, edges with eighteen CuCu8Sn2Ge2 cuboctahedra, faces with two equivalent GeCu12 cuboctahedra, faces with four equivalent SnCu12 cuboctahedra, and faces with fourteen CuCu8Sn2Ge2 cuboctahedra. Both Cu–Sn bond lengths are 2.73 Å. Both Cu–Ge bond lengths are 2.77 Å. Sn is bonded to twelve Cu atoms to form SnCu12 cuboctahedra that share corners with two equivalent SnCu12 cuboctahedra, corners with sixteen CuCu8Sn2Ge2 cuboctahedra, edges with two equivalent SnCu12 cuboctahedra, edges with four equivalent GeCu12 cuboctahedra, edges with twelve CuCu8Sn2Ge2 cuboctahedra, faces with two equivalent SnCu12 cuboctahedra, faces with four equivalent GeCu12 cuboctahedra, and faces with fourteen CuCu8Sn2Ge2 cuboctahedra. Ge is bonded to twelve Cu atoms to form GeCu12 cuboctahedra that share corners with two equivalent GeCu12 cuboctahedra, corners with sixteen CuCu8Sn2Ge2 cuboctahedra, edges with two equivalent GeCu12 cuboctahedra, edges with four equivalent SnCu12 cuboctahedra, edges with twelve CuCu8Sn2Ge2 cuboctahedra, faces with two equivalent GeCu12 cuboctahedra, faces with four equivalent SnCu12 cuboctahedra, and faces with fourteen CuCu8Sn2Ge2 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on La8Cu3O16 by Materials Project

La8Cu3O16 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are eight inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.32–2.79 Å. In the second La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.35–2.84 Å. In the third La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.34–2.78 Å. In the fourth La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.35–2.86 Å. In the fifth La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.35–2.86 Å. In the sixth La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.35–2.83 Å. In the seventh La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.35–2.94 Å. In the eighth La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.34–2.94 Å. There are four inequivalent Cu+2.67+ sites. In the first Cu+2.67+ site, Cu+2.67+ is bonded to six O2- atoms to form corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles are 3°. There are a spread of Cu–O bond distances ranging from 1.83–2.41 Å. In the second Cu+2.67+ site, Cu+2.67+ is bonded to six O2- atoms to form corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 2–3°. There are a spread of Cu–O bond distances ranging from 1.84–2.40 Å. In the third Cu+2.67+ site, Cu+2.67+ is bonded to six O2- atoms to form corner-sharing CuO6 octahedra. The corner-sharing octahedra tilt angles range from 2–3°. There are a spread of Cu–O bond distances ranging from 1.84–2.40 Å. In the fourth Cu+2.67+ site, Cu+2.67+ is bonded to six O2- atoms to form corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are a spread of Cu–O bond distances ranging from 1.83–2.41 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to four La3+ and two Cu+2.67+ atoms. In the second O2- site, O2- is bonded in a 6-coordinate geometry to five La3+ and one Cu+2.67+ atom. In the third O2- site, O2- is bonded to four La3+ and one Cu+2.67+ atom to form distorted OLa4Cu square pyramids that share edges with two equivalent OLa4Cu square pyramids and faces with two OLa4Cu2 octahedra. In the fourth O2- site, O2- is bonded to four La3+ and one Cu+2.67+ atom to form distorted OLa4Cu square pyramids that share a cornercorner with one OLa4Cu square pyramid, edges with two OLa4Cu2 octahedra, and edges with two equivalent OLa4Cu square pyramids. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to five La3+ atoms. In the sixth O2- site, O2- is bonded in a 6-coordinate geometry to five La3+ and one Cu+2.67+ atom. In the seventh O2- site, O2- is bonded in a 6-coordinate geometry to five La3+ and one Cu+2.67+ atom. In the eighth O2- site, O2- is bonded to four La3+ and one Cu+2.67+ atom to form distorted OLa4Cu square pyramids that share edges with two equivalent OLa4Cu square pyramids and faces with two OLa4Cu2 octahedra. In the ninth O2- site, O2- is bonded to four La3+ and two Cu+2.67+ atoms to form distorted OLa4Cu2 octahedra that share corners with two equivalent OLa4Cu2 octahedra, edges with two OLa4Cu square pyramids, and faces with two OLa4Cu square pyramids. The corner-sharing octahedral tilt angles are 0°. In the tenth O2- site, O2- is bonded to four La3+ and two Cu+2.67+ atoms to form distorted OLa4Cu2 octahedra that share corners with two equivalent OLa4Cu2 octahedra, edges with two OLa4Cu square pyramids, and faces with two OLa4Cu square pyramids. The corner-sharing octahedral tilt angles are 0°. In the eleventh O2- site, O2- is bonded in a 6-coordinate geometry to five La3+ and one Cu+2.67+ atom. In the twelfth O2- site, O2- is bonded in a 6-coordinate geometry to five La3+ and one Cu+2.67+ atom. In the thirteenth O2- site, O2- is bonded in a 5-coordinate geometry to five La3+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted linear geometry to four La3+ and two Cu+2.67+ atoms. In the fifteenth O2- site, O2- is bonded to four La3+ and one Cu+2.67+ atom to form distorted OLa4Cu square pyramids that share a cornercorner with one OLa4Cu square pyramid, edges with two OLa4Cu2 octahedra, and edges with two equivalent OLa4Cu square pyramids. In the sixteenth O2- site, O2- is bonded in a 6-coordinate geometry to five La3+ and one Cu+2.67+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Cu11PdN4 by Materials Project

PdCu11N4 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Pd is bonded in a linear geometry to four equivalent Cu and two equivalent N atoms. All Pd–Cu bond lengths are 2.74 Å. Both Pd–N bond lengths are 1.90 Å. There are four inequivalent Cu sites. In the first Cu site, Cu is bonded in a linear geometry to four equivalent Cu and two equivalent N atoms. All Cu–Cu bond lengths are 2.54 Å. Both Cu–N bond lengths are 1.90 Å. In the second Cu site, Cu is bonded in a linear geometry to four equivalent Cu and two N atoms. All Cu–Cu bond lengths are 2.71 Å. There is one shorter (1.81 Å) and one longer (1.93 Å) Cu–N bond length. In the third Cu site, Cu is bonded in a linear geometry to four equivalent Cu and two equivalent N atoms. All Cu–Cu bond lengths are 2.64 Å. Both Cu–N bond lengths are 1.90 Å. In the fourth Cu site, Cu is bonded in a 8-coordinate geometry to one Pd and seven Cu atoms. There are three inequivalent N sites. In the first N site, N is bonded in a linear geometry to two equivalent Cu atoms. In the second N site, N is bonded to two equivalent Pd and four equivalent Cu atoms to form corner-sharing NCu4Pd2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the third N site, N is bonded in a square co-planar geometry to four Cu atoms.

36 MATERIALS SCIENCE↗

Materials Data on Sr4Y2GaCu5(PbO4)4 by Materials Project

Sr4Y2Cu5Ga(PbO4)4 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are four inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.63–2.80 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.64–2.80 Å. In the third Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.61–2.80 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.62–2.78 Å. There are two inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Y–O bond distances ranging from 2.39–2.47 Å. In the second Y3+ site, Y3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Y–O bond distances ranging from 2.39–2.47 Å. There are five inequivalent Cu+1.40+ sites. In the first Cu+1.40+ site, Cu+1.40+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.85 Å) and one longer (1.86 Å) Cu–O bond length. In the second Cu+1.40+ site, Cu+1.40+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.85 Å) and one longer (1.86 Å) Cu–O bond length. In the third Cu+1.40+ site, Cu+1.40+ is bonded to five O2- atoms to form CuO5 square pyramids that share a cornercorner with one PbO5 square pyramid and corners with four equivalent CuO5 square pyramids. There are four shorter (1.95 Å) and one longer (2.36 Å) Cu–O bond lengths. In the fourth Cu+1.40+ site, Cu+1.40+ is bonded to five O2- atoms to form CuO5 square pyramids that share a cornercorner with one PbO5 square pyramid and corners with four equivalent CuO5 square pyramids. There are four shorter (1.94 Å) and one longer (2.39 Å) Cu–O bond lengths. In the fifth Cu+1.40+ site, Cu+1.40+ is bonded to five O2- atoms to form CuO5 square pyramids that share a cornercorner with one PbO5 square pyramid and corners with four equivalent GaO5 square pyramids. There are four shorter (2.00 Å) and one longer (2.31 Å) Cu–O bond lengths. Ga3+ is bonded to five O2- atoms to form GaO5 square pyramids that share a cornercorner with one PbO5 square pyramid and corners with four equivalent CuO5 square pyramids. There is four shorter (1.92 Å) and one longer (1.99 Å) Ga–O bond length. There are four inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded to five O2- atoms to form distorted PbO5 square pyramids that share a cornercorner with one CuO5 square pyramid, corners with four equivalent PbO5 square pyramids, and edges with four equivalent PbO5 square pyramids. There are a spread of Pb–O bond distances ranging from 2.15–3.06 Å. In the second Pb2+ site, Pb2+ is bonded to five O2- atoms to form distorted PbO5 square pyramids that share a cornercorner with one CuO5 square pyramid, corners with four equivalent PbO5 square pyramids, and edges with four equivalent PbO5 square pyramids. There are a spread of Pb–O bond distances ranging from 2.16–3.04 Å. In the third Pb2+ site, Pb2+ is bonded to five O2- atoms to form distorted PbO5 square pyramids that share a cornercorner with one GaO5 square pyramid, corners with four equivalent PbO5 square pyramids, and edges with four equivalent PbO5 square pyramids. There are a spread of Pb–O bond distances ranging from 2.30–3.09 Å. In the fourth Pb2+ site, Pb2+ is bonded to five O2- atoms to form distorted PbO5 square pyramids that share a cornercorner with one CuO5 square pyramid, corners with four equivalent PbO5 square pyramids, and edges with four equivalent PbO5 square pyramids. There are a spread of Pb–O bond distances ranging from 2.17–3.02 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded to four Sr2+, one Cu+1.40+, and one Pb2+ atom to form a mixture of distorted edge and corner-sharing OSr4CuPb octahedra. The corner-sharing octahedral tilt angles are 22°. In the second O2- site, O2- is bonded to four Sr2+, one Cu+1.40+, and one Pb2+ atom to form a mixture of distorted edge and corner-sharing OSr4CuPb octahedra. The corner-sharing octahedra tilt angles range from 21–22°. In the third O2- site, O2- is bonded to four Sr2+, one Ga3+, and one Pb2+ atom to form distorted OSr4GaPb octahedra that share corners with four equivalent OSr4GaPb octahedra and edges with four equivalent OSr4CuPb octahedra. The corner-sharing octahedral tilt angles are 15°. In the fourth O2- site, O2- is bonded to four Sr2+, one Cu+1.40+, and one Pb2+ atom to form distorted OSr4CuPb octahedra that share corners with four equivalent OSr4CuPb octahedra and edges with four equivalent OSr4GaPb octahedra. The corner-sharing octahedra tilt angles range from 21–22°. In the fifth O2- site, O2- is bonded in a 6-coordinate geometry to two Sr2+, two Y3+, and two Cu+1.40+ atoms. In the sixth O2- site, O2- is bonded in a 6-coordinate geometry to two Sr2+, two Y3+, and two Cu+1.40+ atoms. In the seventh O2- site, O2- is bonded in a 6-coordinate geometry to two Sr2+, two Y3+, one Cu+1.40+, and one Ga3+ atom. In the eighth O2- site, O2- is bonded in a 6-coordinate geometry to two Sr2+, two Y3+, one Cu+1.40+, and one Ga3+ atom. In the ninth O2- site, O2- is bonded in a 1-coordinate geometry to one Sr2+, one Cu+1.40+, and four Pb2+ atoms. In the tenth O2- site, O2- is bonded in a 1-coordinate geometry to one Sr2+, one Cu+1.40+, and four Pb2+ atoms. In the eleventh O2- site, O2- is bonded in a 1-coordinate geometry to one Sr2+, one Cu+1.40+, and four Pb2+ atoms. In the twelfth O2- site, O2- is bonded in a 1-coordinate geometry to one Sr2+, one Cu+1.40+, and four Pb2+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on LiCu2C2O7 by Materials Project

LiCu2C2O7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six CuO4 tetrahedra. There are a spread of Li–O bond distances ranging from 2.15–2.25 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six CuO4 tetrahedra. There are a spread of Li–O bond distances ranging from 2.15–2.24 Å. There are four inequivalent Cu+2.50+ sites. In the first Cu+2.50+ site, Cu+2.50+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with three equivalent LiO6 octahedra and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 67–68°. There are a spread of Cu–O bond distances ranging from 1.76–2.00 Å. In the second Cu+2.50+ site, Cu+2.50+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with three equivalent LiO6 octahedra and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 67–69°. There are a spread of Cu–O bond distances ranging from 1.76–2.00 Å. In the third Cu+2.50+ site, Cu+2.50+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with three equivalent LiO6 octahedra and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 68–69°. There are a spread of Cu–O bond distances ranging from 1.76–2.00 Å. In the fourth Cu+2.50+ site, Cu+2.50+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with three equivalent LiO6 octahedra and a cornercorner with one CuO4 tetrahedra. The corner-sharing octahedra tilt angles range from 67–68°. There are a spread of Cu–O bond distances ranging from 1.76–2.00 Å. There are four inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.29 Å) and one longer (1.30 Å) C–O bond length. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.29 Å) and two longer (1.30 Å) C–O bond length. In the third C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.29 Å) and two longer (1.30 Å) C–O bond length. In the fourth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.29 Å) and two longer (1.30 Å) C–O bond length. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the second O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the third O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the fourth O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the fifth O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the sixth O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the seventh O2- site, O2- is bonded in a linear geometry to two Cu+2.50+ atoms. In the eighth O2- site, O2- is bonded in a linear geometry to two Cu+2.50+ atoms. In the ninth O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the tenth O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the eleventh O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the twelfth O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the thirteenth O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom. In the fourteenth O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Cu+2.50+, and one C4+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Cu5Ge2 by Materials Project

Cu5Ge2 crystallizes in the trigonal R3m space group. The structure is three-dimensional. there are five inequivalent Cu sites. In the first Cu site, Cu is bonded in a 11-coordinate geometry to five Cu and six Ge atoms. There are a spread of Cu–Cu bond distances ranging from 2.44–2.58 Å. There are three shorter (2.78 Å) and three longer (2.85 Å) Cu–Ge bond lengths. In the second Cu site, Cu is bonded in a 10-coordinate geometry to seven Cu and three equivalent Ge atoms. There are a spread of Cu–Cu bond distances ranging from 2.44–2.58 Å. All Cu–Ge bond lengths are 2.84 Å. In the third Cu site, Cu is bonded in a 8-coordinate geometry to four Cu and four Ge atoms. There are one shorter (2.56 Å) and three longer (2.57 Å) Cu–Ge bond lengths. In the fourth Cu site, Cu is bonded in a 4-coordinate geometry to four Cu and four Ge atoms. There are three shorter (2.45 Å) and one longer (2.46 Å) Cu–Ge bond lengths. In the fifth Cu site, Cu is bonded in a distorted body-centered cubic geometry to four Cu and four Ge atoms. There are one shorter (2.56 Å) and three longer (2.57 Å) Cu–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 11-coordinate geometry to eleven Cu atoms. In the second Ge site, Ge is bonded in a 10-coordinate geometry to ten Cu atoms.

36 MATERIALS SCIENCE↗

Materials Data on Cu4As3PbO12 by Materials Project

Cu4PbAs3O12 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are five inequivalent Cu+1.75+ sites. In the first Cu+1.75+ site, Cu+1.75+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Cu–O bond distances ranging from 1.87–2.50 Å. In the second Cu+1.75+ site, Cu+1.75+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.97 Å) and two longer (1.98 Å) Cu–O bond length. In the third Cu+1.75+ site, Cu+1.75+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.92 Å) and two longer (2.00 Å) Cu–O bond length. In the fourth Cu+1.75+ site, Cu+1.75+ is bonded to five O2- atoms to form CuO5 trigonal bipyramids that share corners with five AsO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.97–2.21 Å. In the fifth Cu+1.75+ site, Cu+1.75+ is bonded to five O2- atoms to form CuO5 trigonal bipyramids that share corners with five AsO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.95–2.15 Å. Pb2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Pb–O bond distances ranging from 2.50–2.97 Å. There are three inequivalent As5+ sites. In the first As5+ site, As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share corners with four CuO5 trigonal bipyramids. There are a spread of As–O bond distances ranging from 1.72–1.75 Å. In the second As5+ site, As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share corners with three CuO5 trigonal bipyramids. There are a spread of As–O bond distances ranging from 1.72–1.79 Å. In the third As5+ site, As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share corners with three CuO5 trigonal bipyramids. There are a spread of As–O bond distances ranging from 1.71–1.77 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to two Cu+1.75+ and one As5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Cu+1.75+, one Pb2+, and one As5+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to two Cu+1.75+ and one As5+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Cu+1.75+ and one As5+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Cu+1.75+, one Pb2+, and one As5+ atom. In the sixth O2- site, O2- is bonded in a trigonal planar geometry to two Cu+1.75+ and one As5+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cu+1.75+, one Pb2+, and one As5+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Pb2+ and one As5+ atom. In the ninth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cu+1.75+, one Pb2+, and one As5+ atom. In the tenth O2- site, O2- is bonded in a 2-coordinate geometry to two Cu+1.75+ and one As5+ atom. In the eleventh O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Cu+1.75+, one Pb2+, and one As5+ atom. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to one Cu+1.75+, one Pb2+, and one As5+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Cu6Sn5 by Materials Project

Cu6Sn5 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are four inequivalent Cu sites. In the first Cu site, Cu is bonded in a distorted q6 geometry to three Cu and six Sn atoms. There are a spread of Cu–Cu bond distances ranging from 2.56–2.65 Å. There are a spread of Cu–Sn bond distances ranging from 2.70–2.85 Å. In the second Cu site, Cu is bonded in a distorted q6 geometry to three Cu and six Sn atoms. There are one shorter (2.55 Å) and one longer (2.66 Å) Cu–Cu bond lengths. There are a spread of Cu–Sn bond distances ranging from 2.70–2.86 Å. In the third Cu site, Cu is bonded in a distorted q6 geometry to four Cu and six Sn atoms. Both Cu–Cu bond lengths are 2.74 Å. There are a spread of Cu–Sn bond distances ranging from 2.81–2.88 Å. In the fourth Cu site, Cu is bonded in a 11-coordinate geometry to six Cu and five Sn atoms. There are a spread of Cu–Sn bond distances ranging from 2.67–2.74 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 7-coordinate geometry to seven Cu atoms. In the second Sn site, Sn is bonded in a 7-coordinate geometry to seven Cu atoms. In the third Sn site, Sn is bonded in a 7-coordinate geometry to seven Cu atoms.

36 MATERIALS SCIENCE↗

Materials Data on Cu10Sb3 by Materials Project

Cu10Sb3 is beta-derived structured and crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. there are four inequivalent Cu sites. In the first Cu site, Cu is bonded to nine Cu and three equivalent Sb atoms to form CuCu9Sb3 cuboctahedra that share corners with six equivalent SbCu12 cuboctahedra, corners with twelve CuCu8Sb4 cuboctahedra, edges with six equivalent SbCu12 cuboctahedra, edges with twelve CuCu8Sb4 cuboctahedra, faces with three equivalent SbCu12 cuboctahedra, and faces with seventeen CuCu9Sb3 cuboctahedra. There are six shorter (2.61 Å) and three longer (2.80 Å) Cu–Cu bond lengths. All Cu–Sb bond lengths are 2.76 Å. In the second Cu site, Cu is bonded to eight Cu and four equivalent Sb atoms to form distorted CuCu8Sb4 cuboctahedra that share corners with five equivalent SbCu12 cuboctahedra, corners with thirteen CuCu9Sb3 cuboctahedra, edges with five equivalent SbCu12 cuboctahedra, edges with thirteen CuCu8Sb4 cuboctahedra, faces with four equivalent SbCu12 cuboctahedra, and faces with sixteen CuCu8Sb4 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.58–3.04 Å. There are a spread of Cu–Sb bond distances ranging from 2.78–2.83 Å. In the third Cu site, Cu is bonded to eight Cu and four equivalent Sb atoms to form distorted CuCu8Sb4 cuboctahedra that share corners with five equivalent SbCu12 cuboctahedra, corners with thirteen CuCu9Sb3 cuboctahedra, edges with three equivalent SbCu12 cuboctahedra, edges with fifteen CuCu8Sb4 cuboctahedra, faces with four equivalent SbCu12 cuboctahedra, and faces with sixteen CuCu9Sb3 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.61–2.88 Å. There are a spread of Cu–Sb bond distances ranging from 2.72–2.82 Å. In the fourth Cu site, Cu is bonded to nine Cu and three equivalent Sb atoms to form distorted CuCu9Sb3 cuboctahedra that share corners with four equivalent SbCu12 cuboctahedra, corners with fourteen CuCu9Sb3 cuboctahedra, edges with four equivalent SbCu12 cuboctahedra, edges with fourteen CuCu9Sb3 cuboctahedra, faces with five equivalent SbCu12 cuboctahedra, and faces with fifteen CuCu9Sb3 cuboctahedra. Both Cu–Cu bond lengths are 2.57 Å. There are two shorter (2.75 Å) and one longer (2.90 Å) Cu–Sb bond lengths. Sb is bonded to twelve Cu atoms to form SbCu12 cuboctahedra that share corners with two equivalent SbCu12 cuboctahedra, corners with sixteen CuCu9Sb3 cuboctahedra, edges with four equivalent SbCu12 cuboctahedra, edges with fourteen CuCu9Sb3 cuboctahedra, faces with six equivalent SbCu12 cuboctahedra, and faces with fourteen CuCu9Sb3 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on ThInCu5 by Materials Project

ThCu5In crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Th is bonded in a 6-coordinate geometry to fifteen Cu and four equivalent In atoms. There are a spread of Th–Cu bond distances ranging from 2.94–3.37 Å. There are a spread of Th–In bond distances ranging from 3.32–3.42 Å. There are four inequivalent Cu sites. In the first Cu site, Cu is bonded to three equivalent Th, seven Cu, and two equivalent In atoms to form a mixture of corner, edge, and face-sharing CuTh3In2Cu7 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.51–2.56 Å. There are one shorter (2.80 Å) and one longer (2.82 Å) Cu–In bond lengths. In the second Cu site, Cu is bonded in a 10-coordinate geometry to three equivalent Th, four Cu, and three equivalent In atoms. There are one shorter (2.56 Å) and one longer (2.63 Å) Cu–Cu bond lengths. There are one shorter (2.66 Å) and two longer (3.06 Å) Cu–In bond lengths. In the third Cu site, Cu is bonded to three equivalent Th, seven Cu, and two equivalent In atoms to form a mixture of corner, edge, and face-sharing CuTh3In2Cu7 cuboctahedra. The Cu–Cu bond length is 2.55 Å. Both Cu–In bond lengths are 2.85 Å. In the fourth Cu site, Cu is bonded in a 12-coordinate geometry to three equivalent Th, five Cu, and one In atom. The Cu–In bond length is 2.82 Å. In is bonded in a 1-coordinate geometry to four equivalent Th and ten Cu atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeCu6 by Materials Project

CeCu6 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ce is bonded in a 7-coordinate geometry to nineteen Cu atoms. There are a spread of Ce–Cu bond distances ranging from 2.87–3.36 Å. There are five inequivalent Cu sites. In the first Cu site, Cu is bonded in a 12-coordinate geometry to three equivalent Ce and nine Cu atoms. There are a spread of Cu–Cu bond distances ranging from 2.44–3.00 Å. In the second Cu site, Cu is bonded to three equivalent Ce and nine Cu atoms to form a mixture of edge, face, and corner-sharing CuCe3Cu9 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.46–2.68 Å. In the third Cu site, Cu is bonded in a 2-coordinate geometry to four equivalent Ce and ten Cu atoms. There are a spread of Cu–Cu bond distances ranging from 2.50–3.06 Å. In the fourth Cu site, Cu is bonded to three equivalent Ce and nine Cu atoms to form a mixture of edge, face, and corner-sharing CuCe3Cu9 cuboctahedra. There are one shorter (2.48 Å) and one longer (2.63 Å) Cu–Cu bond lengths. In the fifth Cu site, Cu is bonded in a 3-coordinate geometry to three equivalent Ce and eight Cu atoms.

36 MATERIALS SCIENCE↗

Materials Data on LaCu6 by Materials Project

LaCu6 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. La is bonded in a 6-coordinate geometry to nineteen Cu atoms. There are a spread of La–Cu bond distances ranging from 2.94–3.41 Å. There are five inequivalent Cu sites. In the first Cu site, Cu is bonded in a 12-coordinate geometry to four equivalent La and ten Cu atoms. There are a spread of Cu–Cu bond distances ranging from 2.55–3.11 Å. In the second Cu site, Cu is bonded to three equivalent La and nine Cu atoms to form a mixture of face, edge, and corner-sharing CuLa3Cu9 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.47–2.63 Å. In the third Cu site, Cu is bonded in a 12-coordinate geometry to three equivalent La and nine Cu atoms. There are a spread of Cu–Cu bond distances ranging from 2.52–3.06 Å. In the fourth Cu site, Cu is bonded to three equivalent La and nine Cu atoms to form a mixture of face, edge, and corner-sharing CuLa3Cu9 cuboctahedra. There are one shorter (2.49 Å) and one longer (2.62 Å) Cu–Cu bond lengths. In the fifth Cu site, Cu is bonded in a 3-coordinate geometry to three equivalent La and eight Cu atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeCu5Sn by Materials Project

CeCu5Sn crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ce is bonded in a 6-coordinate geometry to fifteen Cu and four equivalent Sn atoms. There are a spread of Ce–Cu bond distances ranging from 2.91–3.37 Å. There are two shorter (3.32 Å) and two longer (3.41 Å) Ce–Sn bond lengths. There are four inequivalent Cu sites. In the first Cu site, Cu is bonded to three equivalent Ce, seven Cu, and two equivalent Sn atoms to form a mixture of corner, edge, and face-sharing CuCe3Cu7Sn2 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.51–2.55 Å. There are one shorter (2.78 Å) and one longer (2.81 Å) Cu–Sn bond lengths. In the second Cu site, Cu is bonded to three equivalent Ce, seven Cu, and two equivalent Sn atoms to form a mixture of corner, edge, and face-sharing CuCe3Cu7Sn2 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.55–2.61 Å. Both Cu–Sn bond lengths are 2.83 Å. In the third Cu site, Cu is bonded in a 4-coordinate geometry to three equivalent Ce, five Cu, and three equivalent Sn atoms. The Cu–Cu bond length is 3.09 Å. There are one shorter (2.65 Å) and two longer (3.07 Å) Cu–Sn bond lengths. In the fourth Cu site, Cu is bonded in a 12-coordinate geometry to three equivalent Ce, six Cu, and one Sn atom. The Cu–Sn bond length is 2.85 Å. Sn is bonded in a 1-coordinate geometry to four equivalent Ce and ten Cu atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeCu4Sn by Materials Project

CeCu4Sn crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. Ce is bonded in a 4-coordinate geometry to eleven Cu and three equivalent Sn atoms. There are a spread of Ce–Cu bond distances ranging from 2.78–3.92 Å. There are a spread of Ce–Sn bond distances ranging from 3.25–3.57 Å. There are four inequivalent Cu sites. In the first Cu site, Cu is bonded in a 7-coordinate geometry to three equivalent Ce, six Cu, and one Sn atom. There are a spread of Cu–Cu bond distances ranging from 2.39–3.24 Å. The Cu–Sn bond length is 2.87 Å. In the second Cu site, Cu is bonded in a 10-coordinate geometry to four equivalent Ce, three Cu, and three equivalent Sn atoms. There are one shorter (2.48 Å) and one longer (2.64 Å) Cu–Cu bond lengths. There are two shorter (2.75 Å) and one longer (2.77 Å) Cu–Sn bond lengths. In the third Cu site, Cu is bonded in a 8-coordinate geometry to two equivalent Ce, five Cu, and one Sn atom. There are one shorter (2.37 Å) and one longer (2.52 Å) Cu–Cu bond lengths. The Cu–Sn bond length is 2.72 Å. In the fourth Cu site, Cu is bonded in a 8-coordinate geometry to two equivalent Ce, four Cu, and two equivalent Sn atoms. There are one shorter (2.56 Å) and one longer (2.69 Å) Cu–Sn bond lengths. Sn is bonded in a 8-coordinate geometry to three equivalent Ce and seven Cu atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ba6Y3Cu9O20 by Materials Project

Ba6Y3Cu9O20 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are three inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.73–3.02 Å. In the second Ba2+ site, Ba2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Ba–O bond distances ranging from 2.77–3.06 Å. In the third Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.73–3.02 Å. There are two inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Y–O bond distances ranging from 2.40–2.44 Å. In the second Y3+ site, Y3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Y–O bond distances ranging from 2.40–2.44 Å. There are five inequivalent Cu+2.11+ sites. In the first Cu+2.11+ site, Cu+2.11+ is bonded to five O2- atoms to form corner-sharing CuO5 square pyramids. There are a spread of Cu–O bond distances ranging from 1.94–2.44 Å. In the second Cu+2.11+ site, Cu+2.11+ is bonded to five O2- atoms to form corner-sharing CuO5 square pyramids. There are a spread of Cu–O bond distances ranging from 1.94–2.43 Å. In the third Cu+2.11+ site, Cu+2.11+ is bonded to five O2- atoms to form corner-sharing CuO5 square pyramids. There are a spread of Cu–O bond distances ranging from 1.95–2.33 Å. In the fourth Cu+2.11+ site, Cu+2.11+ is bonded in a T-shaped geometry to three O2- atoms. There is two shorter (1.83 Å) and one longer (1.90 Å) Cu–O bond length. In the fifth Cu+2.11+ site, Cu+2.11+ is bonded in a square co-planar geometry to four O2- atoms. All Cu–O bond lengths are 1.90 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded to four Ba2+ and two Cu+2.11+ atoms to form distorted corner-sharing OBa4Cu2 octahedra. The corner-sharing octahedra tilt angles range from 0–11°. In the second O2- site, O2- is bonded in a distorted linear geometry to four Ba2+ and two Cu+2.11+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two Ba2+, two Y3+, and two Cu+2.11+ atoms. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Ba2+, two Y3+, and two Cu+2.11+ atoms. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two Ba2+, two equivalent Y3+, and two Cu+2.11+ atoms. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Ba2+, two Y3+, and two Cu+2.11+ atoms. In the seventh O2- site, O2- is bonded in a 6-coordinate geometry to two Ba2+, two Y3+, and two Cu+2.11+ atoms. In the eighth O2- site, O2- is bonded in a 6-coordinate geometry to two Ba2+, two equivalent Y3+, and two Cu+2.11+ atoms. In the ninth O2- site, O2- is bonded in a 6-coordinate geometry to four Ba2+ and two Cu+2.11+ atoms. In the tenth O2- site, O2- is bonded in a 6-coordinate geometry to four Ba2+ and two Cu+2.11+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on ErCu5Sn by Materials Project

ErCu5Sn crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Er is bonded in a 6-coordinate geometry to fifteen Cu and four equivalent Sn atoms. There are a spread of Er–Cu bond distances ranging from 2.88–3.39 Å. There are two shorter (3.27 Å) and two longer (3.40 Å) Er–Sn bond lengths. There are four inequivalent Cu sites. In the first Cu site, Cu is bonded to three equivalent Er, seven Cu, and two equivalent Sn atoms to form a mixture of face, edge, and corner-sharing CuEr3Cu7Sn2 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.49–2.58 Å. Both Cu–Sn bond lengths are 2.80 Å. In the second Cu site, Cu is bonded to three equivalent Er, seven Cu, and two equivalent Sn atoms to form a mixture of face, edge, and corner-sharing CuEr3Cu7Sn2 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.48–2.56 Å. There are one shorter (2.76 Å) and one longer (2.78 Å) Cu–Sn bond lengths. In the third Cu site, Cu is bonded in a 12-coordinate geometry to three equivalent Er, six Cu, and one Sn atom. The Cu–Cu bond length is 3.03 Å. The Cu–Sn bond length is 2.78 Å. In the fourth Cu site, Cu is bonded in a 4-coordinate geometry to three equivalent Er, five Cu, and three equivalent Sn atoms. There are one shorter (2.62 Å) and two longer (3.00 Å) Cu–Sn bond lengths. Sn is bonded in a 1-coordinate geometry to four equivalent Er and ten Cu atoms.

36 MATERIALS SCIENCE↗

Materials Data on Cu7S4N by Materials Project

Cu7NS4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are seven inequivalent Cu+1.57+ sites. In the first Cu+1.57+ site, Cu+1.57+ is bonded in a trigonal planar geometry to three S2- atoms. There are a spread of Cu–S bond distances ranging from 2.27–2.32 Å. In the second Cu+1.57+ site, Cu+1.57+ is bonded in a trigonal planar geometry to three S2- atoms. There are one shorter (2.31 Å) and two longer (2.32 Å) Cu–S bond lengths. In the third Cu+1.57+ site, Cu+1.57+ is bonded in a trigonal planar geometry to three S2- atoms. There are a spread of Cu–S bond distances ranging from 2.28–2.34 Å. In the fourth Cu+1.57+ site, Cu+1.57+ is bonded in a 3-coordinate geometry to three S2- atoms. There are a spread of Cu–S bond distances ranging from 2.28–2.53 Å. In the fifth Cu+1.57+ site, Cu+1.57+ is bonded in a 3-coordinate geometry to four S2- atoms. There are a spread of Cu–S bond distances ranging from 2.21–2.87 Å. In the sixth Cu+1.57+ site, Cu+1.57+ is bonded in a 3-coordinate geometry to four S2- atoms. There are a spread of Cu–S bond distances ranging from 2.22–2.87 Å. In the seventh Cu+1.57+ site, Cu+1.57+ is bonded in a 2-coordinate geometry to three S2- atoms. There are a spread of Cu–S bond distances ranging from 2.25–2.57 Å. N3- is bonded in a body-centered cubic geometry to eight S2- atoms. There are a spread of N–S bond distances ranging from 3.24–3.55 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 6-coordinate geometry to six Cu+1.57+ and two equivalent N3- atoms. In the second S2- site, S2- is bonded in a 5-coordinate geometry to five Cu+1.57+ and two equivalent N3- atoms. In the third S2- site, S2- is bonded in a 4-coordinate geometry to five Cu+1.57+ and two equivalent N3- atoms. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to seven Cu+1.57+ and two equivalent N3- atoms.

36 MATERIALS SCIENCE↗