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Title: Materials Data on Ca3Bi2O7 by Materials Project

Abstract

Ca3Bi2O7 crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.84 Å. In the second Ca2+ site, Ca2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.28–2.76 Å. Bi4+ is bonded to six O2- atoms to form corner-sharing BiO6 octahedra. The corner-sharing octahedra tilt angles range from 39–47°. There are a spread of Bi–O bond distances ranging from 2.23–2.32 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to three equivalent Ca2+ and one Bi4+ atom to form distorted OCa3Bi tetrahedra that share corners with six equivalent OCa3Bi tetrahedra and a cornercorner with one OCa2Bi2 trigonal pyramid. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ca2+ and two equivalent Bi4+ atoms. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+ and two equivalent Bi4+ atoms. In the fourth O2- site, O2- is bonded to twomore » equivalent Ca2+ and two equivalent Bi4+ atoms to form distorted OCa2Bi2 trigonal pyramids that share corners with two equivalent OCa3Bi tetrahedra and corners with two equivalent OCa2Bi2 trigonal pyramids.« less

Authors:
Publication Date:
Other Number(s):
mvc-3359
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; Ca3Bi2O7; Bi-Ca-O
OSTI Identifier:
1320536
DOI:
https://doi.org/10.17188/1320536

Citation Formats

The Materials Project. Materials Data on Ca3Bi2O7 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1320536.
The Materials Project. Materials Data on Ca3Bi2O7 by Materials Project. United States. doi:https://doi.org/10.17188/1320536
The Materials Project. 2020. "Materials Data on Ca3Bi2O7 by Materials Project". United States. doi:https://doi.org/10.17188/1320536. https://www.osti.gov/servlets/purl/1320536. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1320536,
title = {Materials Data on Ca3Bi2O7 by Materials Project},
author = {The Materials Project},
abstractNote = {Ca3Bi2O7 crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.84 Å. In the second Ca2+ site, Ca2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.28–2.76 Å. Bi4+ is bonded to six O2- atoms to form corner-sharing BiO6 octahedra. The corner-sharing octahedra tilt angles range from 39–47°. There are a spread of Bi–O bond distances ranging from 2.23–2.32 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to three equivalent Ca2+ and one Bi4+ atom to form distorted OCa3Bi tetrahedra that share corners with six equivalent OCa3Bi tetrahedra and a cornercorner with one OCa2Bi2 trigonal pyramid. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ca2+ and two equivalent Bi4+ atoms. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+ and two equivalent Bi4+ atoms. In the fourth O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Bi4+ atoms to form distorted OCa2Bi2 trigonal pyramids that share corners with two equivalent OCa3Bi tetrahedra and corners with two equivalent OCa2Bi2 trigonal pyramids.},
doi = {10.17188/1320536},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}