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Title: Materials Data on Cs2CaBr4 by Materials Project

Abstract

Cs2CaBr4 is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Cs1+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of Cs–Br bond distances ranging from 3.60–4.07 Å. Ca2+ is bonded to six Br1- atoms to form corner-sharing CaBr6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.87 Å) and two longer (2.90 Å) Ca–Br bond lengths. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded to four equivalent Cs1+ and two equivalent Ca2+ atoms to form a mixture of distorted face, edge, and corner-sharing BrCs4Ca2 octahedra. The corner-sharing octahedra tilt angles range from 0–55°. In the second Br1- site, Br1- is bonded to five equivalent Cs1+ and one Ca2+ atom to form distorted BrCs5Ca octahedra that share corners with seventeen BrCs4Ca2 octahedra, edges with eight equivalent BrCs5Ca octahedra, and faces with four equivalent BrCs4Ca2 octahedra. The corner-sharing octahedra tilt angles range from 0–55°.

Authors:
Publication Date:
Other Number(s):
mp-1025267
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; Cs2CaBr4; Br-Ca-Cs
OSTI Identifier:
1355420
DOI:
https://doi.org/10.17188/1355420

Citation Formats

The Materials Project. Materials Data on Cs2CaBr4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1355420.
The Materials Project. Materials Data on Cs2CaBr4 by Materials Project. United States. doi:https://doi.org/10.17188/1355420
The Materials Project. 2020. "Materials Data on Cs2CaBr4 by Materials Project". United States. doi:https://doi.org/10.17188/1355420. https://www.osti.gov/servlets/purl/1355420. Pub date:Mon Jul 20 00:00:00 EDT 2020
@article{osti_1355420,
title = {Materials Data on Cs2CaBr4 by Materials Project},
author = {The Materials Project},
abstractNote = {Cs2CaBr4 is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Cs1+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of Cs–Br bond distances ranging from 3.60–4.07 Å. Ca2+ is bonded to six Br1- atoms to form corner-sharing CaBr6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.87 Å) and two longer (2.90 Å) Ca–Br bond lengths. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded to four equivalent Cs1+ and two equivalent Ca2+ atoms to form a mixture of distorted face, edge, and corner-sharing BrCs4Ca2 octahedra. The corner-sharing octahedra tilt angles range from 0–55°. In the second Br1- site, Br1- is bonded to five equivalent Cs1+ and one Ca2+ atom to form distorted BrCs5Ca octahedra that share corners with seventeen BrCs4Ca2 octahedra, edges with eight equivalent BrCs5Ca octahedra, and faces with four equivalent BrCs4Ca2 octahedra. The corner-sharing octahedra tilt angles range from 0–55°.},
doi = {10.17188/1355420},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}