DOE Data Explorer title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Materials Data on Ag7AsSe6 by Materials Project

Abstract

Ag7AsSe6 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are three inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded to four Se2- atoms to form distorted AgSe4 trigonal pyramids that share corners with two equivalent AsSe4 tetrahedra and corners with six equivalent AgSe4 trigonal pyramids. There are a spread of Ag–Se bond distances ranging from 2.65–2.95 Å. In the second Ag1+ site, Ag1+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are a spread of Ag–Se bond distances ranging from 2.63–3.23 Å. In the third Ag1+ site, Ag1+ is bonded in a linear geometry to two Se2- atoms. There are one shorter (2.54 Å) and one longer (2.58 Å) Ag–Se bond lengths. As5+ is bonded to four Se2- atoms to form AsSe4 tetrahedra that share corners with six equivalent AgSe4 trigonal pyramids. There are three shorter (2.38 Å) and one longer (2.39 Å) As–Se bond lengths. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to three equivalent Ag1+ and one As5+ atom to form corner-sharing SeAg3As trigonal pyramids. In the second Se2- site, Se2- is bonded to three Ag1+ and one As5+ atom tomore » form distorted corner-sharing SeAg3As trigonal pyramids. In the third Se2- site, Se2- is bonded in a 4-coordinate geometry to seven Ag1+ atoms. In the fourth Se2- site, Se2- is bonded in a 7-coordinate geometry to seven Ag1+ atoms.« less

Publication Date:
Other Number(s):
mp-1200563
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; Ag7AsSe6; Ag-As-Se
OSTI Identifier:
1727058
DOI:
https://doi.org/10.17188/1727058

Citation Formats

The Materials Project. Materials Data on Ag7AsSe6 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1727058.
The Materials Project. Materials Data on Ag7AsSe6 by Materials Project. United States. doi:https://doi.org/10.17188/1727058
The Materials Project. 2020. "Materials Data on Ag7AsSe6 by Materials Project". United States. doi:https://doi.org/10.17188/1727058. https://www.osti.gov/servlets/purl/1727058. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1727058,
title = {Materials Data on Ag7AsSe6 by Materials Project},
author = {The Materials Project},
abstractNote = {Ag7AsSe6 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are three inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded to four Se2- atoms to form distorted AgSe4 trigonal pyramids that share corners with two equivalent AsSe4 tetrahedra and corners with six equivalent AgSe4 trigonal pyramids. There are a spread of Ag–Se bond distances ranging from 2.65–2.95 Å. In the second Ag1+ site, Ag1+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are a spread of Ag–Se bond distances ranging from 2.63–3.23 Å. In the third Ag1+ site, Ag1+ is bonded in a linear geometry to two Se2- atoms. There are one shorter (2.54 Å) and one longer (2.58 Å) Ag–Se bond lengths. As5+ is bonded to four Se2- atoms to form AsSe4 tetrahedra that share corners with six equivalent AgSe4 trigonal pyramids. There are three shorter (2.38 Å) and one longer (2.39 Å) As–Se bond lengths. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to three equivalent Ag1+ and one As5+ atom to form corner-sharing SeAg3As trigonal pyramids. In the second Se2- site, Se2- is bonded to three Ag1+ and one As5+ atom to form distorted corner-sharing SeAg3As trigonal pyramids. In the third Se2- site, Se2- is bonded in a 4-coordinate geometry to seven Ag1+ atoms. In the fourth Se2- site, Se2- is bonded in a 7-coordinate geometry to seven Ag1+ atoms.},
doi = {10.17188/1727058},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}