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Title: Materials Data on Ca3UO6 by Materials Project

Abstract

Ca3UO6 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.87 Å. In the second Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six equivalent UO6 octahedra. The corner-sharing octahedra tilt angles range from 36–45°. There are a spread of Ca–O bond distances ranging from 2.30–2.43 Å. U6+ is bonded to six O2- atoms to form UO6 octahedra that share corners with six equivalent CaO6 octahedra. The corner-sharing octahedra tilt angles range from 36–45°. There are two shorter (2.07 Å) and four longer (2.11 Å) U–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to three Ca2+ and one U6+ atom to form a mixture of distorted corner and edge-sharing OCa3U tetrahedra. In the second O2- site, O2- is bonded in a 5-coordinate geometry to four Ca2+ and one U6+ atom. In the third O2- site, O2- is bonded to three Ca2+ and one U6+ atom to form amore » mixture of distorted corner and edge-sharing OCa3U trigonal pyramids.« less

Authors:
Publication Date:
Other Number(s):
mp-5960
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; Ca3UO6; Ca-O-U
OSTI Identifier:
1277202
DOI:
https://doi.org/10.17188/1277202

Citation Formats

The Materials Project. Materials Data on Ca3UO6 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1277202.
The Materials Project. Materials Data on Ca3UO6 by Materials Project. United States. doi:https://doi.org/10.17188/1277202
The Materials Project. 2020. "Materials Data on Ca3UO6 by Materials Project". United States. doi:https://doi.org/10.17188/1277202. https://www.osti.gov/servlets/purl/1277202. Pub date:Fri Jul 17 00:00:00 EDT 2020
@article{osti_1277202,
title = {Materials Data on Ca3UO6 by Materials Project},
author = {The Materials Project},
abstractNote = {Ca3UO6 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.87 Å. In the second Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six equivalent UO6 octahedra. The corner-sharing octahedra tilt angles range from 36–45°. There are a spread of Ca–O bond distances ranging from 2.30–2.43 Å. U6+ is bonded to six O2- atoms to form UO6 octahedra that share corners with six equivalent CaO6 octahedra. The corner-sharing octahedra tilt angles range from 36–45°. There are two shorter (2.07 Å) and four longer (2.11 Å) U–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to three Ca2+ and one U6+ atom to form a mixture of distorted corner and edge-sharing OCa3U tetrahedra. In the second O2- site, O2- is bonded in a 5-coordinate geometry to four Ca2+ and one U6+ atom. In the third O2- site, O2- is bonded to three Ca2+ and one U6+ atom to form a mixture of distorted corner and edge-sharing OCa3U trigonal pyramids.},
doi = {10.17188/1277202},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jul 17 00:00:00 EDT 2020},
month = {Fri Jul 17 00:00:00 EDT 2020}
}