Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Nb”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 793 records · Page 44

Materials Data on Nb8N5 by Materials Project

Nb8N5 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. there are four inequivalent Nb sites. In the first Nb site, Nb is bonded in a rectangular see-saw-like geometry to four equivalent N atoms. All Nb–N bond lengths are 2.19 Å. In the second Nb site, Nb is bonded to five N atoms to form corner-sharing NbN5 square pyramids. There are four shorter (2.19 Å) and one longer (2.21 Å) Nb–N bond lengths. In the third Nb site, Nb is bonded in a linear geometry to two equivalent N atoms. Both Nb–N bond lengths are 2.20 Å. In the fourth Nb site, Nb is bonded in a square co-planar geometry to four N atoms. All Nb–N bond lengths are 2.19 Å. There are two inequivalent N sites. In the first N site, N is bonded to six Nb atoms to form a mixture of edge and corner-sharing NNb6 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. In the second N site, N is bonded to six Nb atoms to form a mixture of edge and corner-sharing NNb6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗

Materials Data on Sc3Nb3(B2Ru5)2 by Materials Project

Sc3Nb3(Ru5B2)2 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Sc sites. In the first Sc site, Sc is bonded in a 11-coordinate geometry to ten Ru and three B atoms. There are a spread of Sc–Ru bond distances ranging from 2.85–2.98 Å. There are one shorter (2.73 Å) and two longer (2.87 Å) Sc–B bond lengths. In the second Sc site, Sc is bonded in a 9-coordinate geometry to ten Ru and three B atoms. There are a spread of Sc–Ru bond distances ranging from 2.81–3.05 Å. There are a spread of Sc–B bond distances ranging from 2.73–2.86 Å. There are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a body-centered cubic geometry to eight Ru atoms. There are four shorter (2.66 Å) and four longer (2.67 Å) Nb–Ru bond lengths. In the second Nb site, Nb is bonded in a 11-coordinate geometry to ten Ru and three B atoms. There are a spread of Nb–Ru bond distances ranging from 2.77–2.92 Å. There are one shorter (2.76 Å) and two longer (2.87 Å) Nb–B bond lengths. There are six inequivalent Ru sites. In the first Ru site, Ru is bonded in a distorted body-centered cubic geometry to four equivalent Sc and four B atoms. There are two shorter (2.21 Å) and two longer (2.25 Å) Ru–B bond lengths. In the second Ru site, Ru is bonded in a 8-coordinate geometry to two equivalent Sc, two equivalent Nb, and four equivalent B atoms. All Ru–B bond lengths are 2.24 Å. In the third Ru site, Ru is bonded in a 8-coordinate geometry to two equivalent Sc, four Nb, and two equivalent B atoms. Both Ru–B bond lengths are 2.23 Å. In the fourth Ru site, Ru is bonded in a 8-coordinate geometry to four Sc, two equivalent Nb, and two equivalent B atoms. Both Ru–B bond lengths are 2.22 Å. In the fifth Ru site, Ru is bonded in a 8-coordinate geometry to two equivalent Sc, four Nb, and two equivalent B atoms. Both Ru–B bond lengths are 2.22 Å. In the sixth Ru site, Ru is bonded in a 8-coordinate geometry to four Sc, two equivalent Nb, and two equivalent B atoms. Both Ru–B bond lengths are 2.21 Å. There are three inequivalent B sites. In the first B site, B is bonded in a 6-coordinate geometry to two equivalent Sc, one Nb, and six Ru atoms. In the second B site, B is bonded in a 9-coordinate geometry to three Sc and six Ru atoms. In the third B site, B is bonded in a 9-coordinate geometry to two Sc, one Nb, and six Ru atoms.

36 MATERIALS SCIENCE↗

Materials Data on Nb5(SeS)2 by Materials Project

Nb5(SeS)2 is Titanium telluride-derived structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Nb sites. In the first Nb site, Nb is bonded in a distorted square co-planar geometry to two equivalent Se and two equivalent S atoms. Both Nb–Se bond lengths are 2.88 Å. Both Nb–S bond lengths are 2.73 Å. In the second Nb site, Nb is bonded to two equivalent Se and three equivalent S atoms to form distorted NbSe2S3 square pyramids that share corners with eight equivalent NbSe3S2 square pyramids and edges with six NbSe2S3 square pyramids. Both Nb–Se bond lengths are 2.66 Å. There are one shorter (2.50 Å) and two longer (2.59 Å) Nb–S bond lengths. In the third Nb site, Nb is bonded to three equivalent Se and two equivalent S atoms to form a mixture of distorted edge and corner-sharing NbSe3S2 square pyramids. There are one shorter (2.63 Å) and two longer (2.72 Å) Nb–Se bond lengths. Both Nb–S bond lengths are 2.54 Å. Se is bonded in a 6-coordinate geometry to six Nb atoms. S is bonded in a 6-coordinate geometry to six Nb atoms.

36 MATERIALS SCIENCE↗

Materials Data on Nb3SnH by Materials Project

Nb3SnH crystallizes in the orthorhombic Ama2 space group. The structure is three-dimensional. there are three inequivalent Nb sites. In the first Nb site, Nb is bonded in a single-bond geometry to four equivalent Sn and one H atom. There are a spread of Nb–Sn bond distances ranging from 2.98–3.04 Å. The Nb–H bond length is 1.94 Å. In the second Nb site, Nb is bonded in a bent 120 degrees geometry to four equivalent Sn and two equivalent H atoms. There are two shorter (2.98 Å) and two longer (3.06 Å) Nb–Sn bond lengths. Both Nb–H bond lengths are 1.94 Å. In the third Nb site, Nb is bonded in a single-bond geometry to four equivalent Sn and one H atom. There are a spread of Nb–Sn bond distances ranging from 2.97–3.05 Å. The Nb–H bond length is 1.96 Å. Sn is bonded to twelve Nb atoms to form a mixture of edge and face-sharing SnNb12 cuboctahedra. H is bonded in a 4-coordinate geometry to four Nb atoms.

36 MATERIALS SCIENCE↗

Materials Data on Nb5Ir7 by Materials Project

Nb5Ir7 crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. there are three inequivalent Nb sites. In the first Nb site, Nb is bonded in a 12-coordinate geometry to nine Ir atoms. There are a spread of Nb–Ir bond distances ranging from 2.72–2.88 Å. In the second Nb site, Nb is bonded in a 12-coordinate geometry to eight Ir atoms. There are a spread of Nb–Ir bond distances ranging from 2.77–2.84 Å. In the third Nb site, Nb is bonded to eight Ir atoms to form distorted NbIr8 cuboctahedra that share corners with four equivalent NbIr8 cuboctahedra, corners with four equivalent IrNb6Ir6 cuboctahedra, edges with two equivalent NbIr8 cuboctahedra, and faces with two equivalent NbIr8 cuboctahedra. There are a spread of Nb–Ir bond distances ranging from 2.78–2.86 Å. There are five inequivalent Ir sites. In the first Ir site, Ir is bonded in a 12-coordinate geometry to eight Nb atoms. In the second Ir site, Ir is bonded to four equivalent Nb and two equivalent Ir atoms to form a mixture of distorted edge and corner-sharing IrNb4Ir2 cuboctahedra. Both Ir–Ir bond lengths are 2.78 Å. In the third Ir site, Ir is bonded to six Nb and six Ir atoms to form distorted IrNb6Ir6 cuboctahedra that share corners with two equivalent NbIr8 cuboctahedra, corners with ten IrNb4Ir2 cuboctahedra, edges with eight IrNb4Ir2 cuboctahedra, and faces with seven IrNb8Ir cuboctahedra. There are two shorter (2.78 Å) and three longer (2.85 Å) Ir–Ir bond lengths. In the fourth Ir site, Ir is bonded to eight Nb and one Ir atom to form distorted IrNb8Ir cuboctahedra that share corners with nine IrNb8Ir cuboctahedra, edges with six IrNb4Ir2 cuboctahedra, and faces with six IrNb8Ir cuboctahedra. In the fifth Ir site, Ir is bonded in a distorted water-like geometry to two equivalent Nb and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on Cs13Nb2(In3As5)2 by Materials Project

Cs13Nb2(In3As5)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are thirteen inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five As3- atoms. There are a spread of Cs–As bond distances ranging from 3.63–4.19 Å. In the second Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five As3- atoms. There are a spread of Cs–As bond distances ranging from 3.63–4.19 Å. In the third Cs1+ site, Cs1+ is bonded in a 1-coordinate geometry to one Cs1+ and two As3- atoms. The Cs–Cs bond length is 4.00 Å. There are one shorter (3.52 Å) and one longer (3.88 Å) Cs–As bond lengths. In the fourth Cs1+ site, Cs1+ is bonded in a 1-coordinate geometry to one Cs1+ and three As3- atoms. The Cs–Cs bond length is 4.00 Å. There are a spread of Cs–As bond distances ranging from 3.52–4.36 Å. In the fifth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four As3- atoms. There are a spread of Cs–As bond distances ranging from 3.92–4.03 Å. In the sixth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four As3- atoms. There are a spread of Cs–As bond distances ranging from 3.92–4.03 Å. In the seventh Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to five As3- atoms. There are a spread of Cs–As bond distances ranging from 3.75–4.09 Å. In the eighth Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to five As3- atoms. There are a spread of Cs–As bond distances ranging from 3.75–4.09 Å. In the ninth Cs1+ site, Cs1+ is bonded in a 10-coordinate geometry to four Cs1+ and six As3- atoms. Both Cs–Cs bond lengths are 4.09 Å. There are a spread of Cs–As bond distances ranging from 3.60–4.07 Å. In the tenth Cs1+ site, Cs1+ is bonded in a 2-coordinate geometry to one Cs1+ and three As3- atoms. There are a spread of Cs–As bond distances ranging from 3.65–4.14 Å. In the eleventh Cs1+ site, Cs1+ is bonded in a 2-coordinate geometry to one Cs1+ and three As3- atoms. There are a spread of Cs–As bond distances ranging from 3.65–4.15 Å. In the twelfth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four As3- atoms. There are a spread of Cs–As bond distances ranging from 3.69–4.16 Å. In the thirteenth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four As3- atoms. There are a spread of Cs–As bond distances ranging from 3.70–4.16 Å. There are two inequivalent Nb+3.50+ sites. In the first Nb+3.50+ site, Nb+3.50+ is bonded in a tetrahedral geometry to four As3- atoms. There are a spread of Nb–As bond distances ranging from 2.43–2.60 Å. In the second Nb+3.50+ site, Nb+3.50+ is bonded in a tetrahedral geometry to four As3- atoms. There are a spread of Nb–As bond distances ranging from 2.43–2.60 Å. There are six inequivalent In+1.67+ sites. In the first In+1.67+ site, In+1.67+ is bonded in a distorted T-shaped geometry to three As3- atoms. There are a spread of In–As bond distances ranging from 2.87–2.99 Å. In the second In+1.67+ site, In+1.67+ is bonded in a distorted T-shaped geometry to three As3- atoms. There are a spread of In–As bond distances ranging from 2.87–2.99 Å. In the third In+1.67+ site, In+1.67+ is bonded in a trigonal non-coplanar geometry to three As3- atoms. There are a spread of In–As bond distances ranging from 2.81–2.84 Å. In the fourth In+1.67+ site, In+1.67+ is bonded in a trigonal non-coplanar geometry to three As3- atoms. There are a spread of In–As bond distances ranging from 2.81–2.84 Å. In the fifth In+1.67+ site, In+1.67+ is bonded in a distorted T-shaped geometry to three As3- atoms. There are a spread of In–As bond distances ranging from 2.90–2.92 Å. In the sixth In+1.67+ site, In+1.67+ is bonded in a distorted T-shaped geometry to three As3- atoms. There are a spread of In–As bond distances ranging from 2.90–2.92 Å. There are ten inequivalent As3- sites. In the first As3- site, As3- is bonded in a 1-coordinate geometry to six Cs1+, one Nb+3.50+, and two In+1.67+ atoms. In the second As3- site, As3- is bonded in a 1-coordinate geometry to five Cs1+, one Nb+3.50+, and two In+1.67+ atoms. In the third As3- site, As3- is bonded in a 1-coordinate geometry to two Cs1+, one Nb+3.50+, and two In+1.67+ atoms. In the fourth As3- site, As3- is bonded in a 1-coordinate geometry to two Cs1+, one Nb+3.50+, and two In+1.67+ atoms. In the fifth As3- site, As3- is bonded in a 1-coordinate geometry to six Cs1+, one Nb+3.50+, and two In+1.67+ atoms. In the sixth As3- site, As3- is bonded in a 1-coordinate geometry to six Cs1+, one Nb+3.50+, and two In+1.67+ atoms. In the seventh As3- site, As3- is bonded in a 9-coordinate geometry to six Cs1+ and three In+1.67+ atoms. In the eighth As3- site, As3- is bonded in a 9-coordinate geometry to six Cs1+ and three In+1.67+ atoms. In the ninth As3- site, As3- is bonded in a 1-coordinate geometry to seven Cs1+ and one Nb+3.50+ atom. In the tenth As3- site, As3- is bonded in a 1-coordinate geometry to seven Cs1+ and one Nb+3.50+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Li2LaNb6O18 by Materials Project

(Li)2LaNb6O18 crystallizes in the orthorhombic Pmmm space group. The structure is three-dimensional and consists of two litio molecules and one LaNb6O18 framework. In the LaNb6O18 framework, La is bonded to twelve O atoms to form LaO12 cuboctahedra that share faces with two equivalent LaO12 cuboctahedra and faces with eight equivalent NbO6 octahedra. There are a spread of La–O bond distances ranging from 2.64–2.75 Å. There are two inequivalent Nb sites. In the first Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and faces with two equivalent LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 5–16°. There are a spread of Nb–O bond distances ranging from 1.94–2.07 Å. In the second Nb site, Nb is bonded to six O atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 0–12°. There are a spread of Nb–O bond distances ranging from 1.96–2.04 Å. There are eight inequivalent O sites. In the first O site, O is bonded in a linear geometry to two equivalent Nb atoms. In the second O site, O is bonded in a distorted rectangular see-saw-like geometry to two equivalent La and two equivalent Nb atoms. In the third O site, O is bonded in a 3-coordinate geometry to one La and two equivalent Nb atoms. In the fourth O site, O is bonded in a linear geometry to two Nb atoms. In the fifth O site, O is bonded in a linear geometry to two equivalent Nb atoms. In the sixth O site, O is bonded in a linear geometry to two equivalent Nb atoms. In the seventh O site, O is bonded to two equivalent La and two equivalent Nb atoms to form a mixture of distorted edge and corner-sharing OLa2Nb2 trigonal pyramids. In the eighth O site, O is bonded in a linear geometry to two equivalent Nb atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ba2Nb5O9 by Materials Project

Ba2Nb5O9 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Ba2+ is bonded to twelve O2- atoms to form BaO12 cuboctahedra that share corners with eight equivalent BaO12 cuboctahedra, faces with five equivalent BaO12 cuboctahedra, faces with four equivalent NbO6 octahedra, and faces with four equivalent NbO5 square pyramids. There are a spread of Ba–O bond distances ranging from 2.89–2.99 Å. There are three inequivalent Nb+2.80+ sites. In the first Nb+2.80+ site, Nb+2.80+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with four equivalent NbO6 octahedra, corners with two equivalent NbO5 square pyramids, and faces with eight equivalent BaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.00 Å) and four longer (2.11 Å) Nb–O bond lengths. In the second Nb+2.80+ site, Nb+2.80+ is bonded to five O2- atoms to form NbO5 square pyramids that share a cornercorner with one NbO6 octahedra, corners with four equivalent NbO5 square pyramids, and faces with four equivalent BaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.12 Å) and one longer (2.18 Å) Nb–O bond lengths. In the third Nb+2.80+ site, Nb+2.80+ is bonded in a square co-planar geometry to four O2- atoms. There are two shorter (2.11 Å) and two longer (2.14 Å) Nb–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to four equivalent Ba2+ and two equivalent Nb+2.80+ atoms. In the second O2- site, O2- is bonded in a distorted linear geometry to four equivalent Ba2+ and two Nb+2.80+ atoms. In the third O2- site, O2- is bonded to two equivalent Ba2+ and three Nb+2.80+ atoms to form a mixture of distorted corner and edge-sharing OBa2Nb3 trigonal bipyramids. In the fourth O2- site, O2- is bonded in a square co-planar geometry to four equivalent Nb+2.80+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Sr2Nb5O9 by Materials Project

Sr2Nb5O9 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with eight equivalent SrO12 cuboctahedra, faces with five equivalent SrO12 cuboctahedra, faces with four equivalent NbO6 octahedra, and faces with four equivalent NbO5 square pyramids. There are a spread of Sr–O bond distances ranging from 2.81–2.97 Å. There are three inequivalent Nb+2.80+ sites. In the first Nb+2.80+ site, Nb+2.80+ is bonded to five O2- atoms to form NbO5 square pyramids that share a cornercorner with one NbO6 octahedra, corners with four equivalent NbO5 square pyramids, and faces with four equivalent SrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Nb–O bond lengths are 2.11 Å. In the second Nb+2.80+ site, Nb+2.80+ is bonded in a square co-planar geometry to four O2- atoms. There are two shorter (2.10 Å) and two longer (2.16 Å) Nb–O bond lengths. In the third Nb+2.80+ site, Nb+2.80+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with four equivalent NbO6 octahedra, corners with two equivalent NbO5 square pyramids, and faces with eight equivalent SrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (1.97 Å) and four longer (2.10 Å) Nb–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a square co-planar geometry to four equivalent Nb+2.80+ atoms. In the second O2- site, O2- is bonded to two equivalent Sr2+ and three Nb+2.80+ atoms to form a mixture of distorted edge and corner-sharing OSr2Nb3 trigonal bipyramids. In the third O2- site, O2- is bonded in a distorted linear geometry to four equivalent Sr2+ and two Nb+2.80+ atoms. In the fourth O2- site, O2- is bonded in a distorted linear geometry to four equivalent Sr2+ and two equivalent Nb+2.80+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Nb10C7 by Materials Project

Nb10C7 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Nb+2.80+ sites. In the first Nb+2.80+ site, Nb+2.80+ is bonded in a rectangular see-saw-like geometry to four C4- atoms. There are a spread of Nb–C bond distances ranging from 2.14–2.26 Å. In the second Nb+2.80+ site, Nb+2.80+ is bonded in a rectangular see-saw-like geometry to four C4- atoms. There are a spread of Nb–C bond distances ranging from 2.22–2.29 Å. In the third Nb+2.80+ site, Nb+2.80+ is bonded to five C4- atoms to form a mixture of edge and corner-sharing NbC5 square pyramids. There are one shorter (2.13 Å) and four longer (2.25 Å) Nb–C bond lengths. There are four inequivalent C4- sites. In the first C4- site, C4- is bonded to six Nb+2.80+ atoms to form a mixture of edge and corner-sharing CNb6 octahedra. The corner-sharing octahedra tilt angles range from 3–7°. In the second C4- site, C4- is bonded to six Nb+2.80+ atoms to form a mixture of edge and corner-sharing CNb6 octahedra. The corner-sharing octahedra tilt angles range from 2–6°. In the third C4- site, C4- is bonded to six Nb+2.80+ atoms to form a mixture of edge and corner-sharing CNb6 octahedra. The corner-sharing octahedra tilt angles range from 2–7°. In the fourth C4- site, C4- is bonded to six Nb+2.80+ atoms to form a mixture of edge and corner-sharing CNb6 octahedra. The corner-sharing octahedral tilt angles are 3°.

36 MATERIALS SCIENCE↗

Materials Data on BaNb7O9 by Materials Project

BaNb7O9 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Ba2+ is bonded to twelve O2- atoms to form BaO12 cuboctahedra that share corners with four equivalent BaO12 cuboctahedra, faces with four equivalent BaO12 cuboctahedra, and faces with eight equivalent NbO5 square pyramids. There are eight shorter (2.93 Å) and four longer (3.00 Å) Ba–O bond lengths. There are three inequivalent Nb+2.29+ sites. In the first Nb+2.29+ site, Nb+2.29+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Nb–O bond lengths are 2.12 Å. In the second Nb+2.29+ site, Nb+2.29+ is bonded in a square co-planar geometry to four O2- atoms. There are a spread of Nb–O bond distances ranging from 2.11–2.16 Å. In the third Nb+2.29+ site, Nb+2.29+ is bonded to five O2- atoms to form NbO5 square pyramids that share corners with five equivalent NbO5 square pyramids and faces with four equivalent BaO12 cuboctahedra. There are one shorter (2.12 Å) and four longer (2.13 Å) Nb–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a square co-planar geometry to four Nb+2.29+ atoms. In the second O2- site, O2- is bonded in a rectangular see-saw-like geometry to four equivalent Nb+2.29+ atoms. In the third O2- site, O2- is bonded in a distorted T-shaped geometry to two equivalent Ba2+ and three Nb+2.29+ atoms. In the fourth O2- site, O2- is bonded in a distorted linear geometry to four equivalent Ba2+ and two equivalent Nb+2.29+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Sr7Nb6O21 by Materials Project

Sr7Nb6O21 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. there are four inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. There are three shorter (2.58 Å) and three longer (2.60 Å) Sr–O bond lengths. In the second Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to six O2- atoms. There are three shorter (2.59 Å) and three longer (2.65 Å) Sr–O bond lengths. In the third Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with nine equivalent SrO12 cuboctahedra, faces with three equivalent SrO12 cuboctahedra, and faces with eight NbO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.67–3.03 Å. In the fourth Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with six equivalent SrO12 cuboctahedra, faces with six equivalent SrO12 cuboctahedra, and faces with eight NbO6 octahedra. There are six shorter (2.84 Å) and six longer (2.87 Å) Sr–O bond lengths. There are three inequivalent Nb+4.67+ sites. In the first Nb+4.67+ site, Nb+4.67+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and faces with four SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 9–17°. There are three shorter (1.99 Å) and three longer (2.07 Å) Nb–O bond lengths. In the second Nb+4.67+ site, Nb+4.67+ is bonded to six O2- atoms to form distorted NbO6 octahedra that share corners with three equivalent NbO6 octahedra and a faceface with one SrO12 cuboctahedra. The corner-sharing octahedral tilt angles are 17°. There are three shorter (1.89 Å) and three longer (2.22 Å) Nb–O bond lengths. In the third Nb+4.67+ site, Nb+4.67+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and faces with seven SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–9°. There are three shorter (2.03 Å) and three longer (2.04 Å) Nb–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two Sr2+ and two Nb+4.67+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one Nb+4.67+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to three Sr2+ and two Nb+4.67+ atoms. In the fourth O2- site, O2- is bonded in a distorted linear geometry to four Sr2+ and two equivalent Nb+4.67+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on K3Nb7O19 by Materials Project

K3Nb7O19 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are six inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of K–O bond distances ranging from 2.84–3.21 Å. In the second K1+ site, K1+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of K–O bond distances ranging from 2.66–2.77 Å. In the third K1+ site, K1+ is bonded in a distorted square co-planar geometry to four O2- atoms. There are a spread of K–O bond distances ranging from 2.67–2.83 Å. In the fourth K1+ site, K1+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of K–O bond distances ranging from 2.68–2.78 Å. In the fifth K1+ site, K1+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of K–O bond distances ranging from 2.67–2.82 Å. In the sixth K1+ site, K1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of K–O bond distances ranging from 2.82–3.23 Å. There are fourteen inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 1–9°. There are a spread of Nb–O bond distances ranging from 1.88–2.22 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 9–11°. There are a spread of Nb–O bond distances ranging from 1.89–2.20 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 6–30°. There are a spread of Nb–O bond distances ranging from 1.84–2.36 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 1.84–2.36 Å. In the fifth Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 0–13°. There are a spread of Nb–O bond distances ranging from 1.92–2.13 Å. In the sixth Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 0–11°. There are a spread of Nb–O bond distances ranging from 1.92–2.12 Å. In the seventh 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 1.85–2.31 Å. In the eighth Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 10–11°. There are a spread of Nb–O bond distances ranging from 1.85–2.27 Å. In the ninth Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 5–11°. There are a spread of Nb–O bond distances ranging from 1.86–2.33 Å. In the tenth Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 7–30°. There are a spread of Nb–O bond distances ranging from 1.86–2.33 Å. In the eleventh Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 1–9°. There are a spread of Nb–O bond distances ranging from 1.89–2.20 Å. In the twelfth Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 10–11°. There are a spread of Nb–O bond distances ranging from 1.86–2.27 Å. In the thirteenth 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 1.85–2.31 Å. In the fourteenth Nb5+ site, Nb5+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 6–10°. There are a spread of Nb–O bond distances ranging from 1.89–2.19 Å. There are thirty-nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the second O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to four Nb5+ atoms. In the third O2- site, O2- is bonded in a distorted linear geometry to one K1+ and two Nb5+ atoms. In the fourth O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the fifth O2- site, O2- is bonded to two K1+ and two Nb5+ atoms to form a mixture of distorted edge and corner-sharing OK2Nb2 tetrahedra. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two K1+ and two Nb5+ atoms. In the seventh O2- site, O2- is bonded in a distorted linear geometry to one K1+ and two Nb5+ atoms. In the eighth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and two Nb5+ atoms. In the ninth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and two Nb5+ atoms. In the tenth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and two Nb5+ atoms. In the eleventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+ and two Nb5+ atoms. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to two K1+ and two Nb5+ atoms. 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 distorted linear geometry to one K1+ and two Nb5+ atoms. In the fifteenth O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the sixteenth O2- site, O2- is bonded to two K1+ and two equivalent Nb5+ atoms to form a mixture of distorted edge and corner-sharing OK2Nb2 tetrahedra. In the seventeenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+ and two Nb5+ atoms. In the eighteenth O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the nineteenth O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the twentieth O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the twenty-first O2- site, O2- is bonded in a 4-coordinate geometry to two K1+ and two Nb5+ atoms. In the twenty-second O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to four Nb5+ atoms. In the twenty-third O2- site, O2- is bonded in a 4-coordinate geometry to two K1+ and two Nb5+ atoms. In the twenty-fourth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb5+ atoms. In the twenty-fifth O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the twenty-sixth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and two Nb5+ atoms. In the twenty-seventh O2- site, O2- is bonded in a linear geometry to two equivalent Nb5+ atoms. In the twenty-eighth O2- site, O2- is bonded in a 4-coordinate geometry to one K1+ and three Nb5+ atoms. In the twenty-ninth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and two Nb5+ atoms. In the thirtieth O2- site, O2- is bonded to two K1+ and two Nb5+ atoms to form distorted corner-sharing OK2Nb2 tetrahedra. In the thirty-first O2- site, O2- is bonded to two K1+ and two equivalent Nb5+ atoms to form a mixture of distorted edge and corner-sharing OK2Nb2 tetrahedra. In the thirty-second O2- site, O2- is bonded in a linear geometry to two Nb5+ atoms. In the thirty-third O2- site, O2- is bonded in a 4-coordinate geometry to one K1+ and three Nb5+ atoms. In the thirty-fourth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and two Nb5+ atoms. In the thirty-fifth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and two Nb5+ atoms. In the thirty-sixth O2- site, O2- is bonded in a 2-coordinate geometry to two K1+ and two Nb5+ atoms. In the thirty-seventh O2- site, O2- is bonded in a 4-coordinate geometry to two K1+ and two Nb5+ atoms. In the thirty-eighth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb5+ atoms. In the thirty-ninth O2- site, O2- is bonded in a linear geometry to two equivalent Nb5+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Nb5Ni by Materials Project

Nb5Ni crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. there are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a distorted trigonal non-coplanar geometry to six equivalent Nb and three equivalent Ni atoms. There are three shorter (2.72 Å) and three longer (3.09 Å) Nb–Nb bond lengths. All Nb–Ni bond lengths are 2.63 Å. In the second Nb site, Nb is bonded in a 4-coordinate geometry to twelve Nb and two equivalent Ni atoms. There are four shorter (3.11 Å) and four longer (3.18 Å) Nb–Nb bond lengths. Both Nb–Ni bond lengths are 3.10 Å. Ni is bonded to twelve Nb atoms to form distorted face-sharing NiNb12 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Sr3Li2Nb4O13 by Materials Project

Li2Sr3Nb4O13 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are four shorter (2.10 Å) and two longer (2.69 Å) Li–O bond lengths. There are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with eight SrO12 cuboctahedra, faces with five SrO12 cuboctahedra, and faces with eight NbO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.66–3.04 Å. In the second Sr2+ site, Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with twelve SrO12 cuboctahedra, faces with six SrO12 cuboctahedra, and faces with eight equivalent NbO6 octahedra. There are eight shorter (2.86 Å) and four longer (2.87 Å) Sr–O bond lengths. There are two inequivalent Nb+4.50+ sites. In the first Nb+4.50+ site, Nb+4.50+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and faces with eight SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–2°. There are a spread of Nb–O bond distances ranging from 2.02–2.06 Å. In the second Nb+4.50+ site, Nb+4.50+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with five NbO6 octahedra and faces with four equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–13°. There are a spread of Nb–O bond distances ranging from 1.90–2.16 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to four equivalent Sr2+ and two equivalent Nb+4.50+ atoms. In the second O2- site, O2- is bonded in a distorted linear geometry to four equivalent Sr2+ and two Nb+4.50+ atoms. In the third O2- site, O2- is bonded in a distorted linear geometry to four Sr2+ and two equivalent Nb+4.50+ atoms. In the fourth O2- site, O2- is bonded to four equivalent Li1+ and one Nb+4.50+ atom to form a mixture of distorted corner and edge-sharing OLi4Nb trigonal bipyramids. In the fifth O2- site, O2- is bonded to one Li1+, two equivalent Sr2+, and two equivalent Nb+4.50+ atoms to form a mixture of distorted corner and edge-sharing OSr2LiNb2 trigonal bipyramids. In the sixth O2- site, O2- is bonded in a distorted linear geometry to four equivalent Sr2+ and two equivalent Nb+4.50+ atoms. All O–Sr bond lengths are 2.87 Å. Both O–Nb bond lengths are 2.06 Å.

36 MATERIALS SCIENCE↗

Materials Data on Li12Nb14ZnO42 by Materials Project

Li12Nb14ZnO42 is Ilmenite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent Li1+ sites. In the first 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 2.07–2.32 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 2.08–2.31 Å. In the third 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 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 2.08–2.31 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 2.09–2.32 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 2.08–2.32 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 2.05–2.32 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 2.07–2.31 Å. In the ninth 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 2.08–2.30 Å. In the tenth 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 2.07–2.31 Å. In the eleventh 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 2.08–2.30 Å. In the twelfth 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 2.08–2.33 Å. There are fourteen inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–43°. There are a spread of Nb–O bond distances ranging from 1.88–2.22 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 39–43°. There are a spread of Nb–O bond distances ranging from 1.89–2.23 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 40–42°. There are a spread of Nb–O bond distances ranging from 1.89–2.21 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 37–43°. There are a spread of Nb–O bond distances ranging from 1.90–2.18 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 38–43°. There are a spread of Nb–O bond distances ranging from 1.89–2.20 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 36–42°. There are a spread of Nb–O bond distances ranging from 1.87–2.20 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 39–41°. There are a spread of Nb–O bond distances ranging from 1.89–2.18 Å. In the eighth 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 1.88–2.20 Å. In the ninth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 37–43°. There are a spread of Nb–O bond distances ranging from 1.87–2.21 Å. In the tenth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–43°. There are a spread of Nb–O bond distances ranging from 1.89–2.22 Å. In the eleventh Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 38–43°. There are a spread of Nb–O bond distances ranging from 1.89–2.18 Å. In the twelfth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 38–42°. There are a spread of Nb–O bond distances ranging from 1.87–2.24 Å. In the thirteenth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 40–42°. There are a spread of Nb–O bond distances ranging from 1.89–2.19 Å. In the fourteenth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–41°. There are a spread of Nb–O bond distances ranging from 1.88–2.20 Å. Zn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.02–2.31 Å. There are forty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+ and two Nb5+ atoms. In the second O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the third O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the fourth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to one 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 distorted see-saw-like geometry to one Li1+, two Nb5+, and one Zn2+ atom. In the eighth O2- site, O2- is bonded in a distorted see-saw-like 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 one Li1+, two Nb5+, and one Zn2+ atom. In the thirteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Nb5+ and one Zn2+ atom. 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 trigonal planar geometry to one 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 distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the nineteenth O2- site, O2- is bonded in a distorted T-shaped geometry to one 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 see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-fourth O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+ and two Nb5+ atoms. In the twenty-fifth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-sixth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-eighth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-ninth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirtieth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-first O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-second O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-third O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-fourth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-fifth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-sixth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Li1+, two Nb5+, and one Zn2+ atom. In the thirty-seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-eighth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Li1+, two Nb5+, and one Zn2+ atom. In the thirty-ninth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the fortieth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Li1+, two Nb5+, and one Zn2+ atom. In the forty-first O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the forty-second O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on BaNb5O8 by Materials Project

BaNb5O8 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Ba2+ is bonded to twelve O2- atoms to form BaO12 cuboctahedra that share corners with eight NbO5 square pyramids, faces with two equivalent BaO12 cuboctahedra, and faces with eight NbO5 square pyramids. There are a spread of Ba–O bond distances ranging from 2.93–2.99 Å. There are three inequivalent Nb+2.80+ sites. In the first Nb+2.80+ site, Nb+2.80+ is bonded to five O2- atoms to form NbO5 square pyramids that share corners with two equivalent BaO12 cuboctahedra, corners with six NbO5 square pyramids, an edgeedge with one NbO5 square pyramid, and faces with two equivalent BaO12 cuboctahedra. There are a spread of Nb–O bond distances ranging from 2.09–2.19 Å. In the second Nb+2.80+ site, Nb+2.80+ is bonded to five O2- atoms to form NbO5 square pyramids that share corners with two equivalent BaO12 cuboctahedra, corners with six NbO5 square pyramids, an edgeedge with one NbO5 square pyramid, and faces with two equivalent BaO12 cuboctahedra. There are a spread of Nb–O bond distances ranging from 2.09–2.19 Å. In the third Nb+2.80+ site, Nb+2.80+ is bonded in a square co-planar geometry to four O2- atoms. All Nb–O bond lengths are 2.12 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted T-shaped geometry to two equivalent Ba2+ and three Nb+2.80+ atoms. In the second O2- site, O2- is bonded in a distorted T-shaped geometry to one Ba2+ and three Nb+2.80+ atoms. In the third O2- site, O2- is bonded in a distorted T-shaped geometry to two equivalent Ba2+ and three Nb+2.80+ atoms. In the fourth O2- site, O2- is bonded in a distorted T-shaped geometry to one Ba2+ and three Nb+2.80+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Li12Nb14ZnO42 by Materials Project

Li12Nb14ZnO42 is Ilmenite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent Li1+ sites. In the first 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 2.04–2.32 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 2.09–2.31 Å. In the third 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 2.08–2.33 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 2.07–2.31 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 2.05–2.31 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 2.08–2.33 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 2.08–2.30 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 2.08–2.32 Å. In the ninth 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 2.08–2.31 Å. In the tenth 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 2.08–2.31 Å. In the eleventh 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 2.08–2.31 Å. In the twelfth 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 2.08–2.31 Å. There are fourteen inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 40–42°. 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 38–42°. There are a spread of Nb–O bond distances ranging from 1.89–2.20 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–42°. There are a spread of Nb–O bond distances ranging from 1.88–2.21 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 35–43°. There are a spread of Nb–O bond distances ranging from 1.88–2.21 Å. In the fifth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 39–42°. 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 35–42°. There are a spread of Nb–O bond distances ranging from 1.89–2.22 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 38–43°. There are a spread of Nb–O bond distances ranging from 1.89–2.18 Å. In the eighth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–43°. There are a spread of Nb–O bond distances ranging from 1.85–2.25 Å. In the ninth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 40–42°. There are a spread of Nb–O bond distances ranging from 1.90–2.19 Å. In the tenth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 38–42°. There are a spread of Nb–O bond distances ranging from 1.87–2.24 Å. In the eleventh Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–42°. There are a spread of Nb–O bond distances ranging from 1.91–2.18 Å. In the twelfth 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 1.89–2.18 Å. In the thirteenth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted 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 1.89–2.20 Å. In the fourteenth Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–41°. There are a spread of Nb–O bond distances ranging from 1.87–2.21 Å. Zn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.04–2.30 Å. There are forty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted see-saw-like geometry to one Li1+, two Nb5+, and one Zn2+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to two Nb5+ and one Zn2+ atom. In the third O2- site, O2- is bonded in a distorted see-saw-like geometry to one Li1+, two Nb5+, and one Zn2+ atom. In the fourth O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+ and two Nb5+ atoms. In the fifth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the sixth O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+ and two Nb5+ atoms. In the seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the eighth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the ninth O2- site, O2- is bonded in a 3-coordinate geometry to one 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 trigonal planar geometry to one Li1+ and two Nb5+ atoms. In the thirteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two 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 distorted see-saw-like geometry to two 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 T-shaped geometry to one Li1+ and two Nb5+ atoms. In the twenty-third O2- site, O2- is bonded in a distorted see-saw-like 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. In the twenty-fifth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Li1+, two Nb5+, and one Zn2+ atom. In the twenty-sixth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-eighth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the twenty-ninth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirtieth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-first O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-second O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-third O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-fourth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Li1+, two Nb5+, and one Zn2+ atom. In the thirty-fifth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-sixth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the thirty-eighth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Li1+, two Nb5+, and one Zn2+ atom. In the thirty-ninth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the fortieth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the forty-first O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms. In the forty-second O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Nb5+ atoms.

36 MATERIALS SCIENCE↗