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Title: Materials Data on TaV(Cu3Se4)2 by Materials Project

Abstract

TaV(Cu3Se4)2 is Stannite-like structured and crystallizes in the tetragonal P-4m2 space group. The structure is three-dimensional. Ta5+ is bonded to four equivalent Se2- atoms to form TaSe4 tetrahedra that share edges with six CuSe4 tetrahedra. All Ta–Se bond lengths are 2.46 Å. V5+ is bonded to four equivalent Se2- atoms to form VSe4 tetrahedra that share edges with six CuSe4 tetrahedra. All V–Se bond lengths are 2.37 Å. There are three inequivalent Cu1+ sites. In the first Cu1+ site, Cu1+ is bonded to four Se2- atoms to form CuSe4 tetrahedra that share corners with eight CuSe4 tetrahedra, an edgeedge with one TaSe4 tetrahedra, and an edgeedge with one VSe4 tetrahedra. There are two shorter (2.41 Å) and two longer (2.47 Å) Cu–Se bond lengths. In the second Cu1+ site, Cu1+ is bonded to four equivalent Se2- atoms to form CuSe4 tetrahedra that share corners with eight equivalent CuSe4 tetrahedra and edges with two equivalent TaSe4 tetrahedra. All Cu–Se bond lengths are 2.46 Å. In the third Cu1+ site, Cu1+ is bonded to four equivalent Se2- atoms to form CuSe4 tetrahedra that share corners with eight equivalent CuSe4 tetrahedra and edges with two equivalent VSe4 tetrahedra. All Cu–Se bond lengths aremore » 2.42 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to one V5+ and three Cu1+ atoms to form a mixture of distorted edge and corner-sharing SeVCu3 tetrahedra. In the second Se2- site, Se2- is bonded to one Ta5+ and three Cu1+ atoms to form distorted SeTaCu3 tetrahedra that share corners with six SeVCu3 tetrahedra and edges with three equivalent SeTaCu3 tetrahedra.« less

Authors:
Publication Date:
Other Number(s):
mp-1217842
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; TaV(Cu3Se4)2; Cu-Se-Ta-V
OSTI Identifier:
1758037
DOI:
https://doi.org/10.17188/1758037

Citation Formats

The Materials Project. Materials Data on TaV(Cu3Se4)2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1758037.
The Materials Project. Materials Data on TaV(Cu3Se4)2 by Materials Project. United States. doi:https://doi.org/10.17188/1758037
The Materials Project. 2020. "Materials Data on TaV(Cu3Se4)2 by Materials Project". United States. doi:https://doi.org/10.17188/1758037. https://www.osti.gov/servlets/purl/1758037. Pub date:Thu Sep 03 00:00:00 EDT 2020
@article{osti_1758037,
title = {Materials Data on TaV(Cu3Se4)2 by Materials Project},
author = {The Materials Project},
abstractNote = {TaV(Cu3Se4)2 is Stannite-like structured and crystallizes in the tetragonal P-4m2 space group. The structure is three-dimensional. Ta5+ is bonded to four equivalent Se2- atoms to form TaSe4 tetrahedra that share edges with six CuSe4 tetrahedra. All Ta–Se bond lengths are 2.46 Å. V5+ is bonded to four equivalent Se2- atoms to form VSe4 tetrahedra that share edges with six CuSe4 tetrahedra. All V–Se bond lengths are 2.37 Å. There are three inequivalent Cu1+ sites. In the first Cu1+ site, Cu1+ is bonded to four Se2- atoms to form CuSe4 tetrahedra that share corners with eight CuSe4 tetrahedra, an edgeedge with one TaSe4 tetrahedra, and an edgeedge with one VSe4 tetrahedra. There are two shorter (2.41 Å) and two longer (2.47 Å) Cu–Se bond lengths. In the second Cu1+ site, Cu1+ is bonded to four equivalent Se2- atoms to form CuSe4 tetrahedra that share corners with eight equivalent CuSe4 tetrahedra and edges with two equivalent TaSe4 tetrahedra. All Cu–Se bond lengths are 2.46 Å. In the third Cu1+ site, Cu1+ is bonded to four equivalent Se2- atoms to form CuSe4 tetrahedra that share corners with eight equivalent CuSe4 tetrahedra and edges with two equivalent VSe4 tetrahedra. All Cu–Se bond lengths are 2.42 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to one V5+ and three Cu1+ atoms to form a mixture of distorted edge and corner-sharing SeVCu3 tetrahedra. In the second Se2- site, Se2- is bonded to one Ta5+ and three Cu1+ atoms to form distorted SeTaCu3 tetrahedra that share corners with six SeVCu3 tetrahedra and edges with three equivalent SeTaCu3 tetrahedra.},
doi = {10.17188/1758037},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {9}
}