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Title: Materials Data on MgSi2 by Materials Project

Abstract

MgSi2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Mg sites. In the first Mg site, Mg is bonded in a 4-coordinate geometry to five Si atoms. There are a spread of Mg–Si bond distances ranging from 2.74–3.18 Å. In the second Mg site, Mg is bonded in a 6-coordinate geometry to six Si atoms. There are a spread of Mg–Si bond distances ranging from 2.80–2.93 Å. In the third Mg site, Mg is bonded in a 8-coordinate geometry to eight Si atoms. There are a spread of Mg–Si bond distances ranging from 2.82–3.02 Å. In the fourth Mg site, Mg is bonded in a 5-coordinate geometry to seven Si atoms. There are a spread of Mg–Si bond distances ranging from 2.76–3.18 Å. There are eight inequivalent Si sites. In the first Si site, Si is bonded in a 7-coordinate geometry to four Mg and three Si atoms. There are a spread of Si–Si bond distances ranging from 2.38–2.44 Å. In the second Si site, Si is bonded in a 7-coordinate geometry to four Mg and three Si atoms. There are two shorter (2.39 Å) and one longer (2.40 Å) Si–Si bond lengths.more » In the third Si site, Si is bonded in a 6-coordinate geometry to two equivalent Mg and four Si atoms. There are two shorter (2.34 Å) and one longer (2.60 Å) Si–Si bond lengths. In the fourth Si site, Si is bonded in a distorted hexagonal planar geometry to two equivalent Mg and four Si atoms. There are a spread of Si–Si bond distances ranging from 2.34–2.54 Å. In the fifth Si site, Si is bonded in a 7-coordinate geometry to five Mg and two equivalent Si atoms. In the sixth Si site, Si is bonded in a 7-coordinate geometry to five Mg and two equivalent Si atoms. In the seventh Si site, Si is bonded in a 6-coordinate geometry to two Mg and four Si atoms. The Si–Si bond length is 2.42 Å. In the eighth Si site, Si is bonded in a 6-coordinate geometry to two Mg and four Si atoms.« less

Publication Date:
Other Number(s):
mp-1073396
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; MgSi2; Mg-Si
OSTI Identifier:
1759205
DOI:
https://doi.org/10.17188/1759205

Citation Formats

The Materials Project. Materials Data on MgSi2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1759205.
The Materials Project. Materials Data on MgSi2 by Materials Project. United States. doi:https://doi.org/10.17188/1759205
The Materials Project. 2020. "Materials Data on MgSi2 by Materials Project". United States. doi:https://doi.org/10.17188/1759205. https://www.osti.gov/servlets/purl/1759205. Pub date:Thu Sep 03 00:00:00 EDT 2020
@article{osti_1759205,
title = {Materials Data on MgSi2 by Materials Project},
author = {The Materials Project},
abstractNote = {MgSi2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Mg sites. In the first Mg site, Mg is bonded in a 4-coordinate geometry to five Si atoms. There are a spread of Mg–Si bond distances ranging from 2.74–3.18 Å. In the second Mg site, Mg is bonded in a 6-coordinate geometry to six Si atoms. There are a spread of Mg–Si bond distances ranging from 2.80–2.93 Å. In the third Mg site, Mg is bonded in a 8-coordinate geometry to eight Si atoms. There are a spread of Mg–Si bond distances ranging from 2.82–3.02 Å. In the fourth Mg site, Mg is bonded in a 5-coordinate geometry to seven Si atoms. There are a spread of Mg–Si bond distances ranging from 2.76–3.18 Å. There are eight inequivalent Si sites. In the first Si site, Si is bonded in a 7-coordinate geometry to four Mg and three Si atoms. There are a spread of Si–Si bond distances ranging from 2.38–2.44 Å. In the second Si site, Si is bonded in a 7-coordinate geometry to four Mg and three Si atoms. There are two shorter (2.39 Å) and one longer (2.40 Å) Si–Si bond lengths. In the third Si site, Si is bonded in a 6-coordinate geometry to two equivalent Mg and four Si atoms. There are two shorter (2.34 Å) and one longer (2.60 Å) Si–Si bond lengths. In the fourth Si site, Si is bonded in a distorted hexagonal planar geometry to two equivalent Mg and four Si atoms. There are a spread of Si–Si bond distances ranging from 2.34–2.54 Å. In the fifth Si site, Si is bonded in a 7-coordinate geometry to five Mg and two equivalent Si atoms. In the sixth Si site, Si is bonded in a 7-coordinate geometry to five Mg and two equivalent Si atoms. In the seventh Si site, Si is bonded in a 6-coordinate geometry to two Mg and four Si atoms. The Si–Si bond length is 2.42 Å. In the eighth Si site, Si is bonded in a 6-coordinate geometry to two Mg and four Si atoms.},
doi = {10.17188/1759205},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {9}
}