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Title: Materials Data on U8CoS17 by Materials Project

Abstract

U8CoS17 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent U4+ sites. In the first U4+ site, U4+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of U–S bond distances ranging from 2.70–2.88 Å. In the second U4+ site, U4+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of U–S bond distances ranging from 2.71–2.79 Å. In the third U4+ site, U4+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of U–S bond distances ranging from 2.68–2.96 Å. Co2+ is bonded in an octahedral geometry to six S2- atoms. There are two shorter (2.24 Å) and four longer (2.39 Å) Co–S bond lengths. There are seven inequivalent S2- sites. In the first S2- site, S2- is bonded to four U4+ atoms to form distorted SU4 trigonal pyramids that share corners with two equivalent SU6 octahedra, corners with six equivalent SU3Co tetrahedra, edges with two equivalent SU3Co tetrahedra, and an edgeedge with one SU4 trigonal pyramid. The corner-sharing octahedral tilt angles are 38°. In the second S2- site, S2- is bonded to six U4+ atoms to formmore » SU6 octahedra that share corners with four equivalent SU3Co tetrahedra and corners with four equivalent SU4 trigonal pyramids. In the third S2- site, S2- is bonded in a rectangular see-saw-like geometry to four U4+ atoms. In the fourth S2- site, S2- is bonded to three U4+ and one Co2+ atom to form distorted SU3Co tetrahedra that share a cornercorner with one SU6 octahedra, corners with five equivalent SU3Co tetrahedra, corners with three equivalent SU4 trigonal pyramids, edges with two equivalent SU3Co tetrahedra, and an edgeedge with one SU4 trigonal pyramid. The corner-sharing octahedral tilt angles are 53°. In the fifth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three U4+ and one Co2+ atom. In the sixth S2- site, S2- is bonded in a rectangular see-saw-like geometry to four U4+ atoms. In the seventh S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to four U4+ atoms.« less

Publication Date:
Other Number(s):
mp-1192708
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; U8CoS17; Co-S-U
OSTI Identifier:
1706761
DOI:
https://doi.org/10.17188/1706761

Citation Formats

The Materials Project. Materials Data on U8CoS17 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1706761.
The Materials Project. Materials Data on U8CoS17 by Materials Project. United States. doi:https://doi.org/10.17188/1706761
The Materials Project. 2020. "Materials Data on U8CoS17 by Materials Project". United States. doi:https://doi.org/10.17188/1706761. https://www.osti.gov/servlets/purl/1706761. Pub date:Mon May 04 00:00:00 EDT 2020
@article{osti_1706761,
title = {Materials Data on U8CoS17 by Materials Project},
author = {The Materials Project},
abstractNote = {U8CoS17 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent U4+ sites. In the first U4+ site, U4+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of U–S bond distances ranging from 2.70–2.88 Å. In the second U4+ site, U4+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of U–S bond distances ranging from 2.71–2.79 Å. In the third U4+ site, U4+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of U–S bond distances ranging from 2.68–2.96 Å. Co2+ is bonded in an octahedral geometry to six S2- atoms. There are two shorter (2.24 Å) and four longer (2.39 Å) Co–S bond lengths. There are seven inequivalent S2- sites. In the first S2- site, S2- is bonded to four U4+ atoms to form distorted SU4 trigonal pyramids that share corners with two equivalent SU6 octahedra, corners with six equivalent SU3Co tetrahedra, edges with two equivalent SU3Co tetrahedra, and an edgeedge with one SU4 trigonal pyramid. The corner-sharing octahedral tilt angles are 38°. In the second S2- site, S2- is bonded to six U4+ atoms to form SU6 octahedra that share corners with four equivalent SU3Co tetrahedra and corners with four equivalent SU4 trigonal pyramids. In the third S2- site, S2- is bonded in a rectangular see-saw-like geometry to four U4+ atoms. In the fourth S2- site, S2- is bonded to three U4+ and one Co2+ atom to form distorted SU3Co tetrahedra that share a cornercorner with one SU6 octahedra, corners with five equivalent SU3Co tetrahedra, corners with three equivalent SU4 trigonal pyramids, edges with two equivalent SU3Co tetrahedra, and an edgeedge with one SU4 trigonal pyramid. The corner-sharing octahedral tilt angles are 53°. In the fifth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three U4+ and one Co2+ atom. In the sixth S2- site, S2- is bonded in a rectangular see-saw-like geometry to four U4+ atoms. In the seventh S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to four U4+ atoms.},
doi = {10.17188/1706761},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}