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Title: Materials Data on Na3Sr3GaAs4 by Materials Project

Abstract

Na3Sr3GaAs4 crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Na1+ is bonded to four As3- atoms to form distorted NaAs4 trigonal pyramids that share corners with two equivalent GaAs4 tetrahedra, corners with eight equivalent NaAs4 trigonal pyramids, and an edgeedge with one GaAs4 tetrahedra. There are a spread of Na–As bond distances ranging from 2.95–3.33 Å. Sr2+ is bonded in a 6-coordinate geometry to six As3- atoms. There are a spread of Sr–As bond distances ranging from 3.22–3.58 Å. Ga3+ is bonded to four As3- atoms to form GaAs4 tetrahedra that share corners with six equivalent NaAs4 trigonal pyramids and edges with three equivalent NaAs4 trigonal pyramids. There are three shorter (2.53 Å) and one longer (2.62 Å) Ga–As bond lengths. There are two inequivalent As3- sites. In the first As3- site, As3- is bonded in a 8-coordinate geometry to three equivalent Na1+, four equivalent Sr2+, and one Ga3+ atom. In the second As3- site, As3- is bonded in a 10-coordinate geometry to three equivalent Na1+, six equivalent Sr2+, and one Ga3+ atom.

Publication Date:
Other Number(s):
mp-10097
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Product Type:
Dataset
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)
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; Na3Sr3GaAs4; As-Ga-Na-Sr
OSTI Identifier:
1186083
DOI:
https://doi.org/10.17188/1186083

Citation Formats

The Materials Project. Materials Data on Na3Sr3GaAs4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1186083.
The Materials Project. Materials Data on Na3Sr3GaAs4 by Materials Project. United States. doi:https://doi.org/10.17188/1186083
The Materials Project. 2020. "Materials Data on Na3Sr3GaAs4 by Materials Project". United States. doi:https://doi.org/10.17188/1186083. https://www.osti.gov/servlets/purl/1186083. Pub date:Thu Jul 23 00:00:00 EDT 2020
@article{osti_1186083,
title = {Materials Data on Na3Sr3GaAs4 by Materials Project},
author = {The Materials Project},
abstractNote = {Na3Sr3GaAs4 crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Na1+ is bonded to four As3- atoms to form distorted NaAs4 trigonal pyramids that share corners with two equivalent GaAs4 tetrahedra, corners with eight equivalent NaAs4 trigonal pyramids, and an edgeedge with one GaAs4 tetrahedra. There are a spread of Na–As bond distances ranging from 2.95–3.33 Å. Sr2+ is bonded in a 6-coordinate geometry to six As3- atoms. There are a spread of Sr–As bond distances ranging from 3.22–3.58 Å. Ga3+ is bonded to four As3- atoms to form GaAs4 tetrahedra that share corners with six equivalent NaAs4 trigonal pyramids and edges with three equivalent NaAs4 trigonal pyramids. There are three shorter (2.53 Å) and one longer (2.62 Å) Ga–As bond lengths. There are two inequivalent As3- sites. In the first As3- site, As3- is bonded in a 8-coordinate geometry to three equivalent Na1+, four equivalent Sr2+, and one Ga3+ atom. In the second As3- site, As3- is bonded in a 10-coordinate geometry to three equivalent Na1+, six equivalent Sr2+, and one Ga3+ atom.},
doi = {10.17188/1186083},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}