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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Cs2GaSb2 by Materials Project

Cs2GaSb2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 7-coordinate geometry to two Sb+2.50- atoms. There are one shorter (3.88 Å) and one longer (4.02 Å) Cs–Sb bond lengths. In the second Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five Sb+2.50- atoms. There are a spread of Cs–Sb bond distances ranging from 3.89–4.07 Å. There are two inequivalent Ga3+ sites. In the first Ga3+ site, Ga3+ is bonded in a trigonal planar geometry to three Sb+2.50- atoms. There are a spread of Ga–Sb bond distances ranging from 2.61–2.65 Å. In the second Ga3+ site, Ga3+ is bonded in a trigonal planar geometry to three Sb+2.50- atoms. There are a spread of Ga–Sb bond distances ranging from 2.61–2.65 Å. There are four inequivalent Sb+2.50- sites. In the first Sb+2.50- site, Sb+2.50- is bonded in a 2-coordinate geometry to six Cs1+ and two Ga3+ atoms. In the second Sb+2.50- site, Sb+2.50- is bonded in a distorted single-bond geometry to two equivalent Cs1+ and one Ga3+ atom. In the third Sb+2.50- site, Sb+2.50- is bonded in a 2-coordinate geometry to four Cs1+ and two Ga3+ atoms. In the fourth Sb+2.50- site, Sb+2.50- is bonded in a 1-coordinate geometry to two equivalent Cs1+ and one Ga3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Cs6GaSb3 by Materials Project

Cs6GaSb3 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are six inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to six Sb3- atoms. There are a spread of Cs–Sb bond distances ranging from 4.08–4.44 Å. In the second Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to four Sb3- atoms. There are a spread of Cs–Sb bond distances ranging from 3.86–4.49 Å. In the third Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four Sb3- atoms. There are a spread of Cs–Sb bond distances ranging from 4.07–4.12 Å. In the fourth Cs1+ site, Cs1+ is bonded to four Sb3- atoms to form a mixture of distorted corner and edge-sharing CsSb4 tetrahedra. There are a spread of Cs–Sb bond distances ranging from 3.88–4.14 Å. In the fifth Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five Sb3- atoms. There are a spread of Cs–Sb bond distances ranging from 4.13–4.18 Å. In the sixth Cs1+ site, Cs1+ is bonded to four Sb3- atoms to form a mixture of distorted corner and edge-sharing CsSb4 trigonal pyramids. There are one shorter (3.93 Å) and three longer (3.95 Å) Cs–Sb bond lengths. Ga3+ is bonded in a trigonal planar geometry to three Sb3- atoms. There are a spread of Ga–Sb bond distances ranging from 2.66–2.73 Å. There are three inequivalent Sb3- sites. In the first Sb3- site, Sb3- is bonded in a 1-coordinate geometry to ten Cs1+ and one Ga3+ atom. In the second Sb3- site, Sb3- is bonded in a 1-coordinate geometry to seven Cs1+ and one Ga3+ atom. In the third Sb3- site, Sb3- is bonded in a 1-coordinate geometry to ten Cs1+ and one Ga3+ atom.

36 MATERIALS SCIENCE↗