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Title: Materials Data on GaAg(GeSe3)2 by Materials Project

Abstract

AgGaGe2Se6 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. Ag1+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are a spread of Ag–Se bond distances ranging from 2.67–2.97 Å. Ga3+ is bonded to four Se2- atoms to form GaSe4 tetrahedra that share corners with four GeSe4 tetrahedra. There are a spread of Ga–Se bond distances ranging from 2.43–2.46 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four Se2- atoms to form GeSe4 tetrahedra that share corners with two equivalent GaSe4 tetrahedra and corners with two equivalent GeSe4 tetrahedra. There are a spread of Ge–Se bond distances ranging from 2.39–2.44 Å. In the second Ge4+ site, Ge4+ is bonded to four Se2- atoms to form GeSe4 tetrahedra that share corners with two equivalent GaSe4 tetrahedra and corners with two equivalent GeSe4 tetrahedra. There are a spread of Ge–Se bond distances ranging from 2.37–2.45 Å. There are six inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a trigonal non-coplanar geometry to one Ag1+, one Ga3+, and one Ge4+ atom. In the second Se2- site, Se2- is bonded in a trigonal non-coplanar geometry to onemore » Ag1+, one Ga3+, and one Ge4+ atom. In the third Se2- site, Se2- is bonded in a distorted trigonal non-coplanar geometry to one Ag1+ and two Ge4+ atoms. In the fourth Se2- site, Se2- is bonded in a water-like geometry to two Ge4+ atoms. In the fifth Se2- site, Se2- is bonded in a distorted trigonal non-coplanar geometry to one Ag1+, one Ga3+, and one Ge4+ atom. In the sixth Se2- site, Se2- is bonded in a water-like geometry to one Ga3+ and one Ge4+ atom.« less

Authors:
Publication Date:
Other Number(s):
mp-1224898
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Collaborations:
MIT; UC Berkeley; Duke; U Louvain
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; GaAg(GeSe3)2; Ag-Ga-Ge-Se
OSTI Identifier:
1695896
DOI:
https://doi.org/10.17188/1695896

Citation Formats

The Materials Project. Materials Data on GaAg(GeSe3)2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1695896.
The Materials Project. Materials Data on GaAg(GeSe3)2 by Materials Project. United States. doi:https://doi.org/10.17188/1695896
The Materials Project. 2020. "Materials Data on GaAg(GeSe3)2 by Materials Project". United States. doi:https://doi.org/10.17188/1695896. https://www.osti.gov/servlets/purl/1695896. Pub date:Sat May 02 00:00:00 EDT 2020
@article{osti_1695896,
title = {Materials Data on GaAg(GeSe3)2 by Materials Project},
author = {The Materials Project},
abstractNote = {AgGaGe2Se6 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. Ag1+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are a spread of Ag–Se bond distances ranging from 2.67–2.97 Å. Ga3+ is bonded to four Se2- atoms to form GaSe4 tetrahedra that share corners with four GeSe4 tetrahedra. There are a spread of Ga–Se bond distances ranging from 2.43–2.46 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four Se2- atoms to form GeSe4 tetrahedra that share corners with two equivalent GaSe4 tetrahedra and corners with two equivalent GeSe4 tetrahedra. There are a spread of Ge–Se bond distances ranging from 2.39–2.44 Å. In the second Ge4+ site, Ge4+ is bonded to four Se2- atoms to form GeSe4 tetrahedra that share corners with two equivalent GaSe4 tetrahedra and corners with two equivalent GeSe4 tetrahedra. There are a spread of Ge–Se bond distances ranging from 2.37–2.45 Å. There are six inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a trigonal non-coplanar geometry to one Ag1+, one Ga3+, and one Ge4+ atom. In the second Se2- site, Se2- is bonded in a trigonal non-coplanar geometry to one Ag1+, one Ga3+, and one Ge4+ atom. In the third Se2- site, Se2- is bonded in a distorted trigonal non-coplanar geometry to one Ag1+ and two Ge4+ atoms. In the fourth Se2- site, Se2- is bonded in a water-like geometry to two Ge4+ atoms. In the fifth Se2- site, Se2- is bonded in a distorted trigonal non-coplanar geometry to one Ag1+, one Ga3+, and one Ge4+ atom. In the sixth Se2- site, Se2- is bonded in a water-like geometry to one Ga3+ and one Ge4+ atom.},
doi = {10.17188/1695896},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}