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Materials Data on Nb5Se4 by Materials Project

Nb5Se4 is Titanium telluride structured and crystallizes in the tetragonal I4/m space group. The structure is three-dimensional. there are two inequivalent Nb sites. In the first Nb site, Nb is bonded to five equivalent Se atoms to form a mixture of distorted edge and corner-sharing NbSe5 square pyramids. There are a spread of Nb–Se bond distances ranging from 2.63–2.71 Å. In the second Nb site, Nb is bonded in a distorted square co-planar geometry to four equivalent Se atoms. All Nb–Se bond lengths are 2.88 Å. Se is bonded in a 6-coordinate geometry to six Nb atoms.

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Materials Data on Nb5Ge3 by Materials Project

Nb5Ge3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a 5-coordinate geometry to five equivalent Ge atoms. There are a spread of Nb–Ge bond distances ranging from 2.65–2.90 Å. In the second Nb site, Nb is bonded in a 6-coordinate geometry to six equivalent Ge atoms. All Nb–Ge bond lengths are 2.73 Å. Ge is bonded in a 9-coordinate geometry to nine Nb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb3PbS6 by Materials Project

Nb3PbS6 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Nb+3.33+ sites. In the first Nb+3.33+ site, Nb+3.33+ is bonded to six equivalent S2- atoms to form distorted edge-sharing NbS6 pentagonal pyramids. All Nb–S bond lengths are 2.51 Å. In the second Nb+3.33+ site, Nb+3.33+ is bonded to six equivalent S2- atoms to form distorted edge-sharing NbS6 pentagonal pyramids. All Nb–S bond lengths are 2.49 Å. Pb2+ is bonded in a 6-coordinate geometry to six equivalent S2- atoms. All Pb–S bond lengths are 2.94 Å. S2- is bonded in a 4-coordinate geometry to three Nb+3.33+ and one Pb2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb5Sb4 by Materials Project

Nb5Sb4 is Titanium telluride structured and crystallizes in the tetragonal I4/m space group. The structure is three-dimensional. there are two inequivalent Nb+2.40+ sites. In the first Nb+2.40+ site, Nb+2.40+ is bonded in a square co-planar geometry to four equivalent Sb3- atoms. All Nb–Sb bond lengths are 3.11 Å. In the second Nb+2.40+ site, Nb+2.40+ is bonded to five equivalent Sb3- atoms to form a mixture of distorted edge and corner-sharing NbSb5 trigonal bipyramids. There are three shorter (2.82 Å) and two longer (2.86 Å) Nb–Sb bond lengths. Sb3- is bonded in a 6-coordinate geometry to six Nb+2.40+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf3Nb2Ga3 by Materials Project

Hf3Nb2Ga3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. Hf is bonded in a 5-coordinate geometry to four equivalent Nb and five equivalent Ga atoms. All Hf–Nb bond lengths are 3.35 Å. There are a spread of Hf–Ga bond distances ranging from 2.75–2.98 Å. Nb is bonded in a 6-coordinate geometry to six equivalent Hf, two equivalent Nb, and six equivalent Ga atoms. Both Nb–Nb bond lengths are 2.73 Å. All Nb–Ga bond lengths are 2.79 Å. Ga is bonded in a 9-coordinate geometry to five equivalent Hf and four equivalent Nb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca4Nb2O9 by Materials Project

Ca4Nb2O9 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are sixteen inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six NbO6 octahedra. The corner-sharing octahedra tilt angles range from 31–46°. There are a spread of Ca–O bond distances ranging from 2.27–2.33 Å. In the second Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ca–O bond distances ranging from 2.34–2.75 Å. In the third Ca2+ site, Ca2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.27–2.58 Å. In the fourth Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six NbO6 octahedra. The corner-sharing octahedra tilt angles range from 30–45°. There are a spread of Ca–O bond distances ranging from 2.27–2.33 Å. In the fifth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.33–2.96 Å. In the sixth Ca2+ site, Ca2+ is bonded in a 5-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.28–3.05 Å. In the seventh Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six NbO6 octahedra. The corner-sharing octahedra tilt angles range from 31–43°. There are a spread of Ca–O bond distances ranging from 2.29–2.37 Å. In the eighth Ca2+ site, Ca2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.23–2.74 Å. In the ninth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.81 Å. In the tenth Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six NbO6 octahedra. The corner-sharing octahedra tilt angles range from 33–51°. There are a spread of Ca–O bond distances ranging from 2.28–2.37 Å. In the eleventh Ca2+ site, Ca2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.27–2.63 Å. In the twelfth Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ca–O bond distances ranging from 2.36–2.73 Å. In the thirteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.27–2.91 Å. In the fourteenth Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to seven O2- atoms. There are a spread of Ca–O bond distances ranging from 2.31–2.81 Å. In the fifteenth Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ca–O bond distances ranging from 2.27–2.68 Å. In the sixteenth Ca2+ site, Ca2+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.26–2.91 Å. There are eight inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with three CaO6 octahedra and corners with three NbO6 octahedra. The corner-sharing octahedra tilt angles range from 31–48°. There are a spread of Nb–O bond distances ranging from 1.92–2.28 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted NbO6 octahedra that share a cornercorner with one NbO6 octahedra and corners with five CaO6 octahedra. The corner-sharing octahedra tilt angles range from 31–46°. There are a spread of Nb–O bond distances ranging from 1.91–2.46 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two NbO6 octahedra and corners with four CaO6 octahedra. The corner-sharing octahedra tilt angles range from 27–43°. There are a spread of Nb–O bond distances ranging from 1.97–2.42 Å. In the fourth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted NbO6 octahedra that share a cornercorner with one NbO6 octahedra and corners with five CaO6 octahedra. The corner-sharing octahedra tilt angles range from 32–45°. There are a spread of Nb–O bond distances ranging from 1.91–2.47 Å. In the fifth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted NbO6 octahedra that share corners with three CaO6 octahedra and corners with three NbO6 octahedra. The corner-sharing octahedra tilt angles range from 30–51°. There are a spread of Nb–O bond distances ranging from 1.90–2.33 Å. In the sixth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 27–40°. There are a spread of Nb–O bond distances ranging from 1.92–2.24 Å. In the seventh Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two NbO6 octahedra and corners with four CaO6 octahedra. The corner-sharing octahedra tilt angles range from 32–41°. There are a spread of Nb–O bond distances ranging from 1.98–2.24 Å. In the eighth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 31–37°. There are a spread of Nb–O bond distances ranging from 1.93–2.22 Å. There are thirty-six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Nb5+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Nb5+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to four Ca2+ and one Nb5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to three Ca2+ and one Nb5+ atom. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+ and two Nb5+ atoms. In the sixth O2- site, O2- is bonded to three Ca2+ and one Nb5+ atom to form distorted corner-sharing OCa3Nb tetrahedra. In the seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to three Ca2+ and one Nb5+ atom. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to three Ca2+ and one Nb5+ atom. In the ninth O2- site, O2- is bonded in a 5-coordinate geometry to four Ca2+ and one Nb5+ atom. In the tenth O2- site, O2- is bonded in a 5-coordinate geometry to four Ca2+ and one Nb5+ atom. In the eleventh O2- site, O2- is bonded in a 5-coordinate geometry to four Ca2+ and one Nb5+ atom. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to three Ca2+ and one Nb5+ atom. In the thirteenth O2- site, O2- is bonded to three Ca2+ and one Nb5+ atom to form distorted corner-sharing OCa3Nb tetrahedra. In the fourteenth O2- site, O2- is bonded in a 5-coordinate geometry to four Ca2+ and one Nb5+ atom. In the fifteenth O2- site, O2- is bonded in a 5-coordinate geometry to four Ca2+ and one Nb5+ atom. In the sixteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Ca2+ and one Nb5+ atom. In the seventeenth O2- site, O2- is bonded in a 4-coordinate geometry to three Ca2+ and one Nb5+ atom. In the eighteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to three Ca2+ and one Nb5+ atom. In the nineteenth O2- site, O2- is bonded to three Ca2+ and one Nb5+ atom to form distorted corner-sharing OCa3Nb tetrahedra. In the twentieth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+ and two Nb5+ atoms. In the twenty-first O2- site, O2- is bonded in a 4-coordinate geometry to three Ca2+ and one Nb5+ atom. In the twenty-second O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+ and two Nb5+ atoms. In the twenty-third O2- site, O2- is bonded in a 4-coordinate geometry to three Ca2+ and one Nb5+ atom. In the twenty-fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Nb5+ atoms. In the twenty-fifth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Nb5+ atoms. In the twenty-sixth O2- site, O2- is bonded in a 5-coordinate geometry to four Ca2+ and one Nb5+ atom. In the twenty-seventh O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Nb5+ atoms. In the twenty-eighth O2- site, O2- is bonded in a 5-coordinate geometry to four Ca2+ and one Nb5+ atom. In the twenty-ninth O2- site, O2- is bonded to two Ca2+ and two Nb5+ atoms to form distorted corner-sharing OCa2Nb2 trigonal pyramids. In the thirtieth O2- site, O2- is bonded to three Ca2+ and one Nb5+ atom to form distorted corner-sharing OCa3Nb trigonal pyramids. In the thirty-first O2- site, O2- is bonded in a 4-coordinate geometry to three Ca2+ and one Nb5+ atom. In the thirty-second O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Nb5+ atoms. In the thirty-third O2- site, O2- is bonded in a 5-coordinate geometry to four Ca2+ and one Nb5+ atom. In the thirty-fourth O2- site, O2- is bonded in a 3-coordinate geometry to four Ca2+ and one Nb5+ atom. In the thirty-fifth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Nb5+ atoms. In the thirty-sixth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and two Nb5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb3SnS6 by Materials Project

Nb3SnS6 is Ilmenite-like structured and crystallizes in the hexagonal P6_322 space group. The structure is three-dimensional. there are two inequivalent Nb+3.33+ sites. In the first Nb+3.33+ site, Nb+3.33+ is bonded to six equivalent S2- atoms to form distorted edge-sharing NbS6 pentagonal pyramids. There are three shorter (2.49 Å) and three longer (2.51 Å) Nb–S bond lengths. In the second Nb+3.33+ site, Nb+3.33+ is bonded to six equivalent S2- atoms to form distorted edge-sharing NbS6 pentagonal pyramids. All Nb–S bond lengths are 2.49 Å. Sn2+ is bonded in a 6-coordinate geometry to six equivalent S2- atoms. All Sn–S bond lengths are 2.86 Å. S2- is bonded in a distorted rectangular see-saw-like geometry to three Nb+3.33+ and one Sn2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb5Si3 by Materials Project

Nb5Si3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Nb+2.40+ sites. In the first Nb+2.40+ site, Nb+2.40+ is bonded to five equivalent Si4- atoms to form distorted NbSi5 trigonal bipyramids that share corners with eight equivalent NbSi6 octahedra, corners with eight equivalent NbSi5 trigonal bipyramids, edges with six equivalent NbSi5 trigonal bipyramids, and faces with four equivalent NbSi6 octahedra. The corner-sharing octahedra tilt angles range from 41–55°. There are a spread of Nb–Si bond distances ranging from 2.61–2.86 Å. In the second Nb+2.40+ site, Nb+2.40+ is bonded to six equivalent Si4- atoms to form distorted NbSi6 octahedra that share corners with six equivalent NbSi6 octahedra, corners with twelve equivalent NbSi5 trigonal bipyramids, edges with three equivalent NbSi6 octahedra, faces with two equivalent NbSi6 octahedra, and faces with six equivalent NbSi5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 35°. All Nb–Si bond lengths are 2.69 Å. Si4- is bonded in a 9-coordinate geometry to nine Nb+2.40+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb5Sb4 by Materials Project

Nb5Sb4 crystallizes in the tetragonal I4/m space group. The structure is three-dimensional. there are two inequivalent Nb+2.40+ sites. In the first Nb+2.40+ site, Nb+2.40+ is bonded in a 5-coordinate geometry to five equivalent Sb3- atoms. There are a spread of Nb–Sb bond distances ranging from 2.89–3.09 Å. In the second Nb+2.40+ site, Nb+2.40+ is bonded in a body-centered cubic geometry to eight equivalent Sb3- atoms. All Nb–Sb bond lengths are 2.88 Å. Sb3- is bonded in a 7-coordinate geometry to seven Nb+2.40+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NbZn16 by Materials Project

NbZn16 is Bergman Structure: Mg32(Al,Zn)49 Bergman-derived structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Nb is bonded in a 1-coordinate geometry to fifteen Zn atoms. There are a spread of Nb–Zn bond distances ranging from 2.77–2.98 Å. There are seven inequivalent Zn sites. In the first Zn site, Zn is bonded in a 12-coordinate geometry to one Nb and eleven Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.62–3.14 Å. In the second Zn site, Zn is bonded in a 9-coordinate geometry to one Nb and twelve Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.52–3.12 Å. In the third Zn site, Zn is bonded to twelve Zn atoms to form a mixture of distorted edge and face-sharing ZnZn12 cuboctahedra. There are a spread of Zn–Zn bond distances ranging from 2.66–2.86 Å. In the fourth Zn site, Zn is bonded in a 11-coordinate geometry to one Nb and ten Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.52–3.09 Å. In the fifth Zn site, Zn is bonded in a 12-coordinate geometry to one Nb and eleven Zn atoms. There are one shorter (2.57 Å) and one longer (2.60 Å) Zn–Zn bond lengths. In the sixth Zn site, Zn is bonded to two equivalent Nb and ten Zn atoms to form ZnNb2Zn10 cuboctahedra that share corners with two equivalent ZnNb2Zn10 cuboctahedra and faces with six equivalent ZnZn12 cuboctahedra. In the seventh Zn site, Zn is bonded in a 9-coordinate geometry to one Nb and ten Zn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K3Nb2S11 by Materials Project

K3Nb2S11 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 9-coordinate geometry to nine S+1.18- atoms. There are a spread of K–S bond distances ranging from 3.33–3.67 Å. In the second K1+ site, K1+ is bonded in a 9-coordinate geometry to nine S+1.18- atoms. There are a spread of K–S bond distances ranging from 3.31–3.67 Å. In the third K1+ site, K1+ is bonded in a 9-coordinate geometry to nine S+1.18- atoms. There are a spread of K–S bond distances ranging from 3.31–3.64 Å. In the fourth K1+ site, K1+ is bonded in a 8-coordinate geometry to ten S+1.18- atoms. There are a spread of K–S bond distances ranging from 3.32–3.82 Å. In the fifth K1+ site, K1+ is bonded in a 8-coordinate geometry to ten S+1.18- atoms. There are a spread of K–S bond distances ranging from 3.31–3.81 Å. In the sixth K1+ site, K1+ is bonded to eight S+1.18- atoms to form a mixture of distorted edge and corner-sharing KS8 hexagonal bipyramids. There are a spread of K–S bond distances ranging from 3.29–3.73 Å. In the seventh K1+ site, K1+ is bonded in a 8-coordinate geometry to ten S+1.18- atoms. There are a spread of K–S bond distances ranging from 3.31–3.84 Å. In the eighth K1+ site, K1+ is bonded to eight S+1.18- atoms to form a mixture of distorted edge and corner-sharing KS8 hexagonal bipyramids. There are a spread of K–S bond distances ranging from 3.28–3.73 Å. In the ninth K1+ site, K1+ is bonded in a 8-coordinate geometry to ten S+1.18- atoms. There are a spread of K–S bond distances ranging from 3.29–3.83 Å. In the tenth K1+ site, K1+ is bonded to eight S+1.18- atoms to form a mixture of distorted edge and corner-sharing KS8 hexagonal bipyramids. There are a spread of K–S bond distances ranging from 3.28–3.68 Å. In the eleventh K1+ site, K1+ is bonded to eight S+1.18- atoms to form a mixture of distorted edge and corner-sharing KS8 hexagonal bipyramids. There are a spread of K–S bond distances ranging from 3.28–3.74 Å. In the twelfth K1+ site, K1+ is bonded in a 9-coordinate geometry to nine S+1.18- atoms. There are a spread of K–S bond distances ranging from 3.32–3.68 Å. There are eight inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded in a 7-coordinate geometry to seven S+1.18- atoms. There are a spread of Nb–S bond distances ranging from 2.25–2.96 Å. In the second Nb5+ site, Nb5+ is bonded in a 7-coordinate geometry to seven S+1.18- atoms. There are a spread of Nb–S bond distances ranging from 2.23–2.98 Å. In the third Nb5+ site, Nb5+ is bonded in a 7-coordinate geometry to seven S+1.18- atoms. There are a spread of Nb–S bond distances ranging from 2.26–2.95 Å. In the fourth Nb5+ site, Nb5+ is bonded in a 7-coordinate geometry to seven S+1.18- atoms. There are a spread of Nb–S bond distances ranging from 2.26–2.95 Å. In the fifth Nb5+ site, Nb5+ is bonded in a 7-coordinate geometry to seven S+1.18- atoms. There are a spread of Nb–S bond distances ranging from 2.23–3.00 Å. In the sixth Nb5+ site, Nb5+ is bonded in a 7-coordinate geometry to seven S+1.18- atoms. There are a spread of Nb–S bond distances ranging from 2.23–2.99 Å. In the seventh Nb5+ site, Nb5+ is bonded in a 7-coordinate geometry to seven S+1.18- atoms. There are a spread of Nb–S bond distances ranging from 2.26–2.95 Å. In the eighth Nb5+ site, Nb5+ is bonded in a 7-coordinate geometry to seven S+1.18- atoms. There are a spread of Nb–S bond distances ranging from 2.25–2.98 Å. There are forty-four inequivalent S+1.18- sites. In the first S+1.18- site, S+1.18- is bonded in a 4-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. The S–S bond length is 2.08 Å. In the second S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. The S–S bond length is 2.08 Å. In the third S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+ and two Nb5+ atoms. In the fourth S+1.18- site, S+1.18- is bonded in a distorted single-bond geometry to four K1+ and one Nb5+ atom. In the fifth S+1.18- site, S+1.18- is bonded in a 4-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. The S–S bond length is 2.08 Å. In the sixth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+ and one Nb5+ atom. In the seventh S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+ and two Nb5+ atoms. In the eighth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to three K1+ and one Nb5+ atom. In the ninth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. The S–S bond length is 2.08 Å. In the tenth S+1.18- site, S+1.18- is bonded in a 2-coordinate geometry to two K1+, two Nb5+, and one S+1.18- atom. In the eleventh S+1.18- site, S+1.18- is bonded in a 4-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. The S–S bond length is 2.08 Å. In the twelfth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, two Nb5+, and one S+1.18- atom. The S–S bond length is 2.08 Å. In the thirteenth S+1.18- site, S+1.18- is bonded in a 4-coordinate geometry to three K1+, one Nb5+, and one S+1.18- atom. In the fourteenth S+1.18- site, S+1.18- is bonded in a 4-coordinate geometry to three K1+ and one Nb5+ atom. In the fifteenth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. In the sixteenth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, two Nb5+, and one S+1.18- atom. The S–S bond length is 2.09 Å. In the seventeenth S+1.18- site, S+1.18- is bonded in a 2-coordinate geometry to two K1+, two Nb5+, and one S+1.18- atom. The S–S bond length is 2.08 Å. In the eighteenth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. The S–S bond length is 2.08 Å. In the nineteenth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to three K1+, one Nb5+, and one S+1.18- atom. The S–S bond length is 2.09 Å. In the twentieth S+1.18- site, S+1.18- is bonded in a 4-coordinate geometry to three K1+, one Nb5+, and one S+1.18- atom. The S–S bond length is 2.09 Å. In the twenty-first S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+ and two Nb5+ atoms. In the twenty-second S+1.18- site, S+1.18- is bonded in a 4-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. In the twenty-third S+1.18- site, S+1.18- is bonded in a 2-coordinate geometry to two K1+, two Nb5+, and one S+1.18- atom. In the twenty-fourth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+ and one Nb5+ atom. In the twenty-fifth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, two Nb5+, and one S+1.18- atom. In the twenty-sixth S+1.18- site, S+1.18- is bonded in a distorted single-bond geometry to four K1+ and one Nb5+ atom. In the twenty-seventh S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. In the twenty-eighth S+1.18- site, S+1.18- is bonded in a 4-coordinate geometry to three K1+, one Nb5+, and one S+1.18- atom. In the twenty-ninth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. The S–S bond length is 2.08 Å. In the thirtieth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. In the thirty-first S+1.18- site, S+1.18- is bonded in a distorted single-bond geometry to four K1+ and one Nb5+ atom. In the thirty-second S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+ and one Nb5+ atom. In the thirty-third S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+ and two Nb5+ atoms. In the thirty-fourth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to three K1+ and one Nb5+ atom. In the thirty-fifth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, two Nb5+, and one S+1.18- atom. In the thirty-sixth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to three K1+ and one Nb5+ atom. In the thirty-seventh S+1.18- site, S+1.18- is bonded in a distorted single-bond geometry to four K1+ and one Nb5+ atom. In the thirty-eighth S+1.18- site, S+1.18- is bonded in a 4-coordinate geometry to three K1+ and one Nb5+ atom. In the thirty-ninth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+ and one Nb5+ atom. In the fortieth S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to two K1+, one Nb5+, and one S+1.18- atom. In the forty-first S+1.18- site, S+1.18- is bonded in a 2-coordinate geometry to two K1+, two Nb5+, and one S+1.18- atom. In the forty-second S+1.18- site, S+1.18- is bonded in a 1-coordinate geometry to three K1+ and one Nb5+ atom. In the forty-third S+1.18- site, S+1.18- is bonded in a distorted rectangular see-saw-like geometry to three K1+ and one Nb5+ atom. In the forty-fourth S+1.18- site, S+1.18- is bonded in a 4-coordinate geometry to three K1+ and one Nb5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiNbO3 by Materials Project

LiNbO3 is Ilmenite-like structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 3-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 1.97–2.66 Å. In the second Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.06–2.32 Å. In the third Li1+ site, Li1+ is bonded in a 3-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 1.99–2.60 Å. In the fourth Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.06–2.34 Å. In the fifth Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.06–2.33 Å. In the sixth Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.07–2.35 Å. In the seventh Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.07–2.33 Å. In the eighth Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.03–2.36 Å. There are eight inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–41°. There are a spread of Nb–O bond distances ranging from 1.90–2.18 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–40°. There are a spread of Nb–O bond distances ranging from 1.91–2.15 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–40°. There are a spread of Nb–O bond distances ranging from 1.91–2.16 Å. In the fourth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 40–41°. There are a spread of Nb–O bond distances ranging from 1.90–2.17 Å. In the fifth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 39–41°. There are a spread of Nb–O bond distances ranging from 1.90–2.18 Å. In the sixth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 40–41°. There are a spread of Nb–O bond distances ranging from 1.90–2.18 Å. In the seventh Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 40–41°. There are a spread of Nb–O bond distances ranging from 1.90–2.18 Å. In the eighth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 40–41°. There are a spread of Nb–O bond distances ranging from 1.90–2.18 Å. There are twenty-four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two Nb5+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+ and two Nb5+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+ and two Nb5+ atoms. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+ and two Nb5+ atoms. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the sixth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the seventh O2- site, O2- is bonded in a 5-coordinate geometry to three Li1+ and two Nb5+ atoms. In the eighth O2- site, O2- is bonded in a distorted trigonal pyramidal geometry to two Li1+ and two Nb5+ atoms. In the ninth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the tenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the eleventh O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twelfth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two Nb5+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the fifteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the sixteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the seventeenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the eighteenth O2- site, O2- is bonded in a 5-coordinate geometry to three Li1+ and two Nb5+ atoms. In the nineteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twentieth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-first O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-second O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-third O2- site, O2- is bonded in a distorted trigonal pyramidal geometry to two Li1+ and two Nb5+ atoms. In the twenty-fourth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb3CoS6 by Materials Project

CoNb3S6 is Ilmenite-like structured and crystallizes in the hexagonal P6_322 space group. The structure is three-dimensional. there are two inequivalent Nb+3.33+ sites. In the first Nb+3.33+ site, Nb+3.33+ is bonded to six equivalent S2- atoms to form distorted NbS6 pentagonal pyramids that share corners with three equivalent CoS6 octahedra, edges with six NbS6 pentagonal pyramids, and a faceface with one CoS6 octahedra. The corner-sharing octahedral tilt angles are 47°. There are three shorter (2.48 Å) and three longer (2.51 Å) Nb–S bond lengths. In the second Nb+3.33+ site, Nb+3.33+ is bonded to six equivalent S2- atoms to form distorted NbS6 pentagonal pyramids that share corners with six equivalent CoS6 octahedra and edges with six equivalent NbS6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 46°. All Nb–S bond lengths are 2.49 Å. Co2+ is bonded to six equivalent S2- atoms to form CoS6 octahedra that share corners with twelve NbS6 pentagonal pyramids and faces with two equivalent NbS6 pentagonal pyramids. All Co–S bond lengths are 2.37 Å. S2- is bonded in a distorted rectangular see-saw-like geometry to three Nb+3.33+ and one Co2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb5N6 by Materials Project

Nb5N6 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Nb+3.60+ sites. In the first Nb+3.60+ site, Nb+3.60+ is bonded to six equivalent N3- atoms to form a mixture of corner and edge-sharing NbN6 octahedra. All Nb–N bond lengths are 2.16 Å. In the second Nb+3.60+ site, Nb+3.60+ is bonded to six equivalent N3- atoms to form a mixture of distorted corner and edge-sharing NbN6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 3°. There are four shorter (2.20 Å) and two longer (2.21 Å) Nb–N bond lengths. N3- is bonded to five Nb+3.60+ atoms to form a mixture of corner, edge, and face-sharing NNb5 square pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NbNO by Materials Project

NbON crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to three N3- and three O2- atoms to form distorted NbN3O3 octahedra that share corners with four NbN3O3 octahedra and edges with four NbN4O2 octahedra. The corner-sharing octahedra tilt angles range from 4–25°. There are a spread of Nb–N bond distances ranging from 1.98–2.31 Å. There is one shorter (1.92 Å) and two longer (1.99 Å) Nb–O bond length. In the second Nb5+ site, Nb5+ is bonded to four N3- and two O2- atoms to form a mixture of distorted edge and corner-sharing NbN4O2 octahedra. The corner-sharing octahedra tilt angles range from 4–40°. There are a spread of Nb–N bond distances ranging from 1.90–2.22 Å. There are one shorter (1.97 Å) and one longer (2.44 Å) Nb–O bond lengths. In the third Nb5+ site, Nb5+ is bonded to four N3- and two O2- atoms to form a mixture of distorted edge and corner-sharing NbN4O2 octahedra. The corner-sharing octahedra tilt angles range from 3–40°. There are a spread of Nb–N bond distances ranging from 1.90–2.21 Å. There are one shorter (1.98 Å) and one longer (2.46 Å) Nb–O bond lengths. In the fourth Nb5+ site, Nb5+ is bonded to three N3- and three O2- atoms to form distorted NbN3O3 octahedra that share corners with four NbN4O2 octahedra and edges with four NbN3O3 octahedra. The corner-sharing octahedra tilt angles range from 3–25°. There are a spread of Nb–N bond distances ranging from 1.98–2.31 Å. There are a spread of Nb–O bond distances ranging from 1.92–2.00 Å. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded in a 3-coordinate geometry to three Nb5+ atoms. In the second N3- site, N3- is bonded to four Nb5+ atoms to form a mixture of distorted edge and corner-sharing NNb4 trigonal pyramids. In the third N3- site, N3- is bonded to four Nb5+ atoms to form a mixture of distorted edge and corner-sharing NNb4 trigonal pyramids. In the fourth N3- site, N3- is bonded in a 3-coordinate geometry to three Nb5+ atoms. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to three Nb5+ atoms. In the second O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the third O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to three Nb5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BaNb3NO7 by Materials Project

BaNb3NO7 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to six O2- atoms to form distorted BaO6 pentagonal pyramids that share corners with two equivalent NbO6 octahedra, corners with two equivalent NbN3O2 trigonal bipyramids, and faces with two equivalent BaO6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 65°. There are a spread of Ba–O bond distances ranging from 2.76–2.82 Å. In the second Ba2+ site, Ba2+ is bonded to two equivalent N3- and four O2- atoms to form distorted BaN2O4 pentagonal pyramids that share corners with two equivalent NbO6 octahedra, corners with two equivalent NbN3O2 trigonal bipyramids, and faces with two equivalent BaN2O4 pentagonal pyramids. The corner-sharing octahedral tilt angles are 47°. Both Ba–N bond lengths are 2.71 Å. There are two shorter (2.81 Å) and two longer (2.88 Å) Ba–O bond lengths. There are six inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to three N3- and two O2- atoms to form distorted NbN3O2 trigonal bipyramids that share corners with three NbNO5 octahedra, corners with four BaO6 pentagonal pyramids, and corners with two equivalent NbN3O2 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 62–69°. There is one shorter (1.80 Å) and two longer (2.08 Å) Nb–N bond length. There are one shorter (2.12 Å) and one longer (2.14 Å) Nb–O bond lengths. In the second Nb5+ site, Nb5+ is bonded to one N3- and five O2- atoms to form distorted NbNO5 octahedra that share corners with two equivalent NbNO5 octahedra, corners with two equivalent NbN3O2 trigonal bipyramids, and edges with two equivalent NbO6 octahedra. The corner-sharing octahedral tilt angles are 29°. The Nb–N bond length is 1.99 Å. There are a spread of Nb–O bond distances ranging from 1.85–2.43 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted NbO6 octahedra that share corners with two equivalent NbO6 octahedra, corners with four BaO6 pentagonal pyramids, a cornercorner with one NbN3O2 trigonal bipyramid, and edges with two equivalent NbNO5 octahedra. The corner-sharing octahedral tilt angles are 28°. There are a spread of Nb–O bond distances ranging from 1.82–2.39 Å. In the fourth Nb5+ site, Nb5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Nb–O bond distances ranging from 1.84–2.45 Å. In the fifth Nb5+ site, Nb5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Nb–O bond distances ranging from 1.82–2.34 Å. In the sixth Nb5+ site, Nb5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Nb–O bond distances ranging from 1.83–2.43 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted trigonal planar geometry to three Nb5+ atoms. In the second N3- site, N3- is bonded in a 1-coordinate geometry to two equivalent Ba2+ and one Nb5+ atom. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+ and one Nb5+ atom. In the second O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to three Nb5+ atoms. In the fourth O2- site, O2- is bonded to two equivalent Ba2+ and two Nb5+ atoms to form distorted corner-sharing OBa2Nb2 tetrahedra. In the fifth O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to three Nb5+ atoms. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+ and one Nb5+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+ and one Nb5+ atom. In the ninth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb5+ atoms. In the tenth O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to four Nb5+ atoms. In the twelfth O2- site, O2- is bonded to two equivalent Ba2+ and two Nb5+ atoms to form distorted corner-sharing OBa2Nb2 tetrahedra. In the thirteenth O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the fourteenth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NbTlO3 by Materials Project

TlNbO3 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–40°. There are a spread of Nb–O bond distances ranging from 1.99–2.06 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–40°. There are a spread of Nb–O bond distances ranging from 1.96–2.09 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–40°. There are a spread of Nb–O bond distances ranging from 1.97–2.08 Å. In the fourth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 37–40°. There are a spread of Nb–O bond distances ranging from 1.98–2.08 Å. In the fifth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–40°. There are a spread of Nb–O bond distances ranging from 1.99–2.07 Å. In the sixth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–40°. There are a spread of Nb–O bond distances ranging from 1.98–2.06 Å. In the seventh Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–40°. There are two shorter (2.01 Å) and four longer (2.03 Å) Nb–O bond lengths. In the eighth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–40°. There are a spread of Nb–O bond distances ranging from 1.98–2.07 Å. There are eight inequivalent Tl1+ sites. In the first Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.75–2.86 Å. In the second Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.77–2.85 Å. In the third Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.75–2.85 Å. In the fourth Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.74–2.90 Å. In the fifth Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.77–2.86 Å. In the sixth Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.77–2.85 Å. In the seventh Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.74–2.87 Å. In the eighth Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.73–2.87 Å. There are twenty-four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the tenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the eleventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the thirteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the fourteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the fifteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the sixteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the seventeenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the eighteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the nineteenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the twentieth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the twenty-first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the twenty-second O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the twenty-third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the twenty-fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on La2Nb2N2O5 by Materials Project

La2Nb2N2O5 is Pb (Zr_0.50 Ti_0.48) O_3-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are four inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 7-coordinate geometry to two equivalent N3- and five O2- atoms. Both La–N bond lengths are 2.44 Å. There are a spread of La–O bond distances ranging from 2.39–2.98 Å. In the second La3+ site, La3+ is bonded in a 10-coordinate geometry to two equivalent N3- and eight O2- atoms. Both La–N bond lengths are 2.56 Å. There are a spread of La–O bond distances ranging from 2.51–3.06 Å. In the third La3+ site, La3+ is bonded in a 12-coordinate geometry to two equivalent N3- and six O2- atoms. Both La–N bond lengths are 2.57 Å. There are a spread of La–O bond distances ranging from 2.52–2.94 Å. In the fourth La3+ site, La3+ is bonded in a 7-coordinate geometry to one N3- and six O2- atoms. The La–N bond length is 2.43 Å. There are a spread of La–O bond distances ranging from 2.43–2.82 Å. There are four inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to two N3- and four O2- atoms to form distorted corner-sharing NbN2O4 octahedra. The corner-sharing octahedra tilt angles range from 21–36°. There is one shorter (1.87 Å) and one longer (2.00 Å) Nb–N bond length. There are a spread of Nb–O bond distances ranging from 2.06–2.35 Å. In the second Nb5+ site, Nb5+ is bonded to two N3- and four O2- atoms to form corner-sharing NbN2O4 octahedra. The corner-sharing octahedra tilt angles range from 12–36°. There are one shorter (1.95 Å) and one longer (2.15 Å) Nb–N bond lengths. There are a spread of Nb–O bond distances ranging from 2.00–2.15 Å. In the third Nb5+ site, Nb5+ is bonded to two N3- and four O2- atoms to form distorted corner-sharing NbN2O4 octahedra. The corner-sharing octahedra tilt angles range from 10–37°. There are one shorter (1.91 Å) and one longer (2.22 Å) Nb–N bond lengths. There are a spread of Nb–O bond distances ranging from 1.92–2.29 Å. In the fourth Nb5+ site, Nb5+ is bonded to one N3- and five O2- atoms to form distorted corner-sharing NbNO5 octahedra. The corner-sharing octahedra tilt angles range from 10–37°. The Nb–N bond length is 1.88 Å. There are a spread of Nb–O bond distances ranging from 1.91–2.28 Å. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded in a 4-coordinate geometry to two equivalent La3+ and two Nb5+ atoms. In the second N3- site, N3- is bonded in a distorted bent 150 degrees geometry to two Nb5+ atoms. In the third N3- site, N3- is bonded to three La3+ and one Nb5+ atom to form distorted NLa3Nb tetrahedra that share corners with two equivalent NLa3Nb tetrahedra and corners with four equivalent OLa3Nb tetrahedra. In the fourth N3- site, N3- is bonded in a 4-coordinate geometry to two equivalent La3+ and two Nb5+ atoms. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent La3+ and two Nb5+ atoms. In the second O2- site, O2- is bonded to three La3+ and one Nb5+ atom to form distorted OLa3Nb tetrahedra that share corners with two equivalent OLa3Nb tetrahedra and corners with four equivalent NLa3Nb tetrahedra. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three La3+ and one Nb5+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to three La3+ and two equivalent Nb5+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to two La3+ and two equivalent Nb5+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to three La3+ and two equivalent Nb5+ atoms. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Nb5+ atom. In the eighth O2- site, O2- is bonded in a distorted linear geometry to two La3+ and two equivalent Nb5+ atoms. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent La3+ and two Nb5+ atoms. In the tenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two equivalent La3+ and two Nb5+ atoms.

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