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Title: Materials Data on CaWN3 by Materials Project

Abstract

CaWN3 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Ca2+ is bonded to seven N+2.67- atoms to form distorted CaN7 pentagonal bipyramids that share corners with five equivalent WN5 trigonal bipyramids, edges with two equivalent CaN7 pentagonal bipyramids, edges with two equivalent WN5 trigonal bipyramids, and faces with three equivalent CaN7 pentagonal bipyramids. There are a spread of Ca–N bond distances ranging from 2.34–2.69 Å. W6+ is bonded to five N+2.67- atoms to form distorted WN5 trigonal bipyramids that share corners with five equivalent CaN7 pentagonal bipyramids, corners with two equivalent WN5 trigonal bipyramids, edges with two equivalent CaN7 pentagonal bipyramids, and edges with two equivalent WN5 trigonal bipyramids. There are a spread of W–N bond distances ranging from 1.80–2.12 Å. There are three inequivalent N+2.67- sites. In the first N+2.67- site, N+2.67- is bonded in a trigonal planar geometry to two equivalent Ca2+ and one W6+ atom. In the second N+2.67- site, N+2.67- is bonded in a 6-coordinate geometry to four equivalent Ca2+, one W6+, and one N+2.67- atom. The N–N bond length is 1.33 Å. In the third N+2.67- site, N+2.67- is bonded to one Ca2+ and three equivalent W6+ atoms to form a mixturemore » of distorted edge and corner-sharing NCaW3 tetrahedra.« less

Publication Date:
Other Number(s):
mp-989616
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; CaWN3; Ca-N-W
OSTI Identifier:
1316909
DOI:
https://doi.org/10.17188/1316909

Citation Formats

The Materials Project. Materials Data on CaWN3 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1316909.
The Materials Project. Materials Data on CaWN3 by Materials Project. United States. doi:https://doi.org/10.17188/1316909
The Materials Project. 2020. "Materials Data on CaWN3 by Materials Project". United States. doi:https://doi.org/10.17188/1316909. https://www.osti.gov/servlets/purl/1316909. Pub date:Wed Jul 22 00:00:00 EDT 2020
@article{osti_1316909,
title = {Materials Data on CaWN3 by Materials Project},
author = {The Materials Project},
abstractNote = {CaWN3 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Ca2+ is bonded to seven N+2.67- atoms to form distorted CaN7 pentagonal bipyramids that share corners with five equivalent WN5 trigonal bipyramids, edges with two equivalent CaN7 pentagonal bipyramids, edges with two equivalent WN5 trigonal bipyramids, and faces with three equivalent CaN7 pentagonal bipyramids. There are a spread of Ca–N bond distances ranging from 2.34–2.69 Å. W6+ is bonded to five N+2.67- atoms to form distorted WN5 trigonal bipyramids that share corners with five equivalent CaN7 pentagonal bipyramids, corners with two equivalent WN5 trigonal bipyramids, edges with two equivalent CaN7 pentagonal bipyramids, and edges with two equivalent WN5 trigonal bipyramids. There are a spread of W–N bond distances ranging from 1.80–2.12 Å. There are three inequivalent N+2.67- sites. In the first N+2.67- site, N+2.67- is bonded in a trigonal planar geometry to two equivalent Ca2+ and one W6+ atom. In the second N+2.67- site, N+2.67- is bonded in a 6-coordinate geometry to four equivalent Ca2+, one W6+, and one N+2.67- atom. The N–N bond length is 1.33 Å. In the third N+2.67- site, N+2.67- is bonded to one Ca2+ and three equivalent W6+ atoms to form a mixture of distorted edge and corner-sharing NCaW3 tetrahedra.},
doi = {10.17188/1316909},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}