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Title: Materials Data on LaCo9Si4 by Materials Project

Abstract

LaCo9Si4 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. La3+ is bonded in a 8-coordinate geometry to eight equivalent Si4- atoms. All La–Si bond lengths are 3.25 Å. There are three inequivalent Co+1.44+ sites. In the first Co+1.44+ site, Co+1.44+ is bonded in a 4-coordinate geometry to four equivalent Si4- atoms. There are two shorter (2.47 Å) and two longer (2.53 Å) Co–Si bond lengths. In the second Co+1.44+ site, Co+1.44+ is bonded to four equivalent Si4- atoms to form a mixture of edge and corner-sharing CoSi4 tetrahedra. There are a spread of Co–Si bond distances ranging from 2.32–2.43 Å. In the third Co+1.44+ site, Co+1.44+ is bonded in a distorted rectangular see-saw-like geometry to four equivalent Si4- atoms. All Co–Si bond lengths are 2.32 Å. Si4- is bonded in a 12-coordinate geometry to two equivalent La3+, nine Co+1.44+, and one Si4- atom. The Si–Si bond length is 2.77 Å.

Authors:
Publication Date:
Other Number(s):
mp-568056
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; LaCo9Si4; Co-La-Si
OSTI Identifier:
1274226
DOI:
https://doi.org/10.17188/1274226

Citation Formats

The Materials Project. Materials Data on LaCo9Si4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1274226.
The Materials Project. Materials Data on LaCo9Si4 by Materials Project. United States. doi:https://doi.org/10.17188/1274226
The Materials Project. 2020. "Materials Data on LaCo9Si4 by Materials Project". United States. doi:https://doi.org/10.17188/1274226. https://www.osti.gov/servlets/purl/1274226. Pub date:Thu Jul 23 00:00:00 EDT 2020
@article{osti_1274226,
title = {Materials Data on LaCo9Si4 by Materials Project},
author = {The Materials Project},
abstractNote = {LaCo9Si4 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. La3+ is bonded in a 8-coordinate geometry to eight equivalent Si4- atoms. All La–Si bond lengths are 3.25 Å. There are three inequivalent Co+1.44+ sites. In the first Co+1.44+ site, Co+1.44+ is bonded in a 4-coordinate geometry to four equivalent Si4- atoms. There are two shorter (2.47 Å) and two longer (2.53 Å) Co–Si bond lengths. In the second Co+1.44+ site, Co+1.44+ is bonded to four equivalent Si4- atoms to form a mixture of edge and corner-sharing CoSi4 tetrahedra. There are a spread of Co–Si bond distances ranging from 2.32–2.43 Å. In the third Co+1.44+ site, Co+1.44+ is bonded in a distorted rectangular see-saw-like geometry to four equivalent Si4- atoms. All Co–Si bond lengths are 2.32 Å. Si4- is bonded in a 12-coordinate geometry to two equivalent La3+, nine Co+1.44+, and one Si4- atom. The Si–Si bond length is 2.77 Å.},
doi = {10.17188/1274226},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}