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Title: Materials Data on Na(VSe2)2 by Materials Project

Abstract

Na(VSe2)2 crystallizes in the monoclinic Pm space group. The structure is three-dimensional. Na1+ is bonded in a 6-coordinate geometry to six Se2- atoms. There are a spread of Na–Se bond distances ranging from 2.98–3.10 Å. There are two inequivalent V+3.50+ sites. In the first V+3.50+ site, V+3.50+ is bonded to six Se2- atoms to form edge-sharing VSe6 octahedra. There are a spread of V–Se bond distances ranging from 2.48–2.59 Å. In the second V+3.50+ site, V+3.50+ is bonded to six Se2- atoms to form edge-sharing VSe6 octahedra. There are a spread of V–Se bond distances ranging from 2.47–2.59 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to two equivalent Na1+ and three V+3.50+ atoms to form distorted SeNa2V3 square pyramids that share corners with five equivalent SeNa2V3 trigonal bipyramids, corners with four SeNaV3 trigonal pyramids, edges with two equivalent SeNa2V3 square pyramids, edges with two equivalent SeNa2V3 trigonal bipyramids, and edges with four SeNaV3 trigonal pyramids. In the second Se2- site, Se2- is bonded to one Na1+ and three V+3.50+ atoms to form distorted SeNaV3 trigonal pyramids that share corners with two equivalent SeNa2V3 square pyramids, corners with two equivalent SeNa2V3 trigonal bipyramids,more » corners with six SeNaV3 trigonal pyramids, edges with two equivalent SeNa2V3 square pyramids, edges with two equivalent SeNa2V3 trigonal bipyramids, and an edgeedge with one SeNaV3 trigonal pyramid. In the third Se2- site, Se2- is bonded to two equivalent Na1+ and three V+3.50+ atoms to form distorted SeNa2V3 trigonal bipyramids that share corners with five equivalent SeNa2V3 square pyramids, corners with four SeNaV3 trigonal pyramids, edges with two equivalent SeNa2V3 square pyramids, edges with two equivalent SeNa2V3 trigonal bipyramids, and edges with four SeNaV3 trigonal pyramids. In the fourth Se2- site, Se2- is bonded to one Na1+ and three V+3.50+ atoms to form distorted SeNaV3 trigonal pyramids that share corners with two equivalent SeNa2V3 square pyramids, corners with two equivalent SeNa2V3 trigonal bipyramids, corners with six SeNaV3 trigonal pyramids, edges with two equivalent SeNa2V3 square pyramids, edges with two equivalent SeNa2V3 trigonal bipyramids, and an edgeedge with one SeNaV3 trigonal pyramid.« less

Authors:
Publication Date:
Other Number(s):
mp-1221454
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; Na(VSe2)2; Na-Se-V
OSTI Identifier:
1689123
DOI:
https://doi.org/10.17188/1689123

Citation Formats

The Materials Project. Materials Data on Na(VSe2)2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1689123.
The Materials Project. Materials Data on Na(VSe2)2 by Materials Project. United States. doi:https://doi.org/10.17188/1689123
The Materials Project. 2020. "Materials Data on Na(VSe2)2 by Materials Project". United States. doi:https://doi.org/10.17188/1689123. https://www.osti.gov/servlets/purl/1689123. Pub date:Sun May 03 00:00:00 EDT 2020
@article{osti_1689123,
title = {Materials Data on Na(VSe2)2 by Materials Project},
author = {The Materials Project},
abstractNote = {Na(VSe2)2 crystallizes in the monoclinic Pm space group. The structure is three-dimensional. Na1+ is bonded in a 6-coordinate geometry to six Se2- atoms. There are a spread of Na–Se bond distances ranging from 2.98–3.10 Å. There are two inequivalent V+3.50+ sites. In the first V+3.50+ site, V+3.50+ is bonded to six Se2- atoms to form edge-sharing VSe6 octahedra. There are a spread of V–Se bond distances ranging from 2.48–2.59 Å. In the second V+3.50+ site, V+3.50+ is bonded to six Se2- atoms to form edge-sharing VSe6 octahedra. There are a spread of V–Se bond distances ranging from 2.47–2.59 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to two equivalent Na1+ and three V+3.50+ atoms to form distorted SeNa2V3 square pyramids that share corners with five equivalent SeNa2V3 trigonal bipyramids, corners with four SeNaV3 trigonal pyramids, edges with two equivalent SeNa2V3 square pyramids, edges with two equivalent SeNa2V3 trigonal bipyramids, and edges with four SeNaV3 trigonal pyramids. In the second Se2- site, Se2- is bonded to one Na1+ and three V+3.50+ atoms to form distorted SeNaV3 trigonal pyramids that share corners with two equivalent SeNa2V3 square pyramids, corners with two equivalent SeNa2V3 trigonal bipyramids, corners with six SeNaV3 trigonal pyramids, edges with two equivalent SeNa2V3 square pyramids, edges with two equivalent SeNa2V3 trigonal bipyramids, and an edgeedge with one SeNaV3 trigonal pyramid. In the third Se2- site, Se2- is bonded to two equivalent Na1+ and three V+3.50+ atoms to form distorted SeNa2V3 trigonal bipyramids that share corners with five equivalent SeNa2V3 square pyramids, corners with four SeNaV3 trigonal pyramids, edges with two equivalent SeNa2V3 square pyramids, edges with two equivalent SeNa2V3 trigonal bipyramids, and edges with four SeNaV3 trigonal pyramids. In the fourth Se2- site, Se2- is bonded to one Na1+ and three V+3.50+ atoms to form distorted SeNaV3 trigonal pyramids that share corners with two equivalent SeNa2V3 square pyramids, corners with two equivalent SeNa2V3 trigonal bipyramids, corners with six SeNaV3 trigonal pyramids, edges with two equivalent SeNa2V3 square pyramids, edges with two equivalent SeNa2V3 trigonal bipyramids, and an edgeedge with one SeNaV3 trigonal pyramid.},
doi = {10.17188/1689123},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}