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Title: Materials Data on Mg3Si9B36C by Materials Project

Abstract

Mg3B36Si9C crystallizes in the trigonal R3m space group. The structure is three-dimensional and consists of six silicon molecules and one Mg3B36Si7C framework. In the Mg3B36Si7C framework, Mg2+ is bonded in a 8-coordinate geometry to eight B+0.83- atoms. There are a spread of Mg–B bond distances ranging from 2.72–2.83 Å. There are eight inequivalent B+0.83- sites. In the first B+0.83- site, B+0.83- is bonded in a 1-coordinate geometry to five B+0.83- and one Si+3.11+ atom. There are a spread of B–B bond distances ranging from 1.75–1.81 Å. The B–Si bond length is 2.04 Å. In the second B+0.83- site, B+0.83- is bonded in a 1-coordinate geometry to five B+0.83- and one Si+3.11+ atom. There is two shorter (1.75 Å) and two longer (1.82 Å) B–B bond length. The B–Si bond length is 1.95 Å. In the third B+0.83- site, B+0.83- is bonded in a 1-coordinate geometry to five B+0.83- and one Si+3.11+ atom. There are a spread of B–B bond distances ranging from 1.79–1.86 Å. The B–Si bond length is 2.05 Å. In the fourth B+0.83- site, B+0.83- is bonded in a single-bond geometry to five B+0.83- and one C4- atom. There is two shorter (1.80 Å) and two longer (1.81more » Å) B–B bond length. The B–C bond length is 1.62 Å. In the fifth B+0.83- site, B+0.83- is bonded in a 7-coordinate geometry to one Mg2+ and six B+0.83- atoms. There are a spread of B–B bond distances ranging from 1.78–1.82 Å. In the sixth B+0.83- site, B+0.83- is bonded in a 7-coordinate geometry to one Mg2+ and six B+0.83- atoms. There are a spread of B–B bond distances ranging from 1.72–1.82 Å. In the seventh B+0.83- site, B+0.83- is bonded in a 1-coordinate geometry to one Mg2+, five B+0.83-, and one Si+3.11+ atom. The B–B bond length is 1.77 Å. The B–Si bond length is 2.06 Å. In the eighth B+0.83- site, B+0.83- is bonded in a 1-coordinate geometry to one Mg2+, five B+0.83-, and one Si+3.11+ atom. The B–Si bond length is 2.04 Å. There are three inequivalent Si+3.11+ sites. In the first Si+3.11+ site, Si+3.11+ is bonded in a trigonal non-coplanar geometry to three B+0.83- atoms. In the second Si+3.11+ site, Si+3.11+ is bonded in a trigonal non-coplanar geometry to three B+0.83- atoms. In the third Si+3.11+ site, Si+3.11+ is bonded in a distorted tetrahedral geometry to three equivalent B+0.83- and one C4- atom. The Si–C bond length is 1.84 Å. C4- is bonded in a tetrahedral geometry to three equivalent B+0.83- and one Si+3.11+ atom.« less

Publication Date:
Other Number(s):
mp-1222229
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; Mg3Si9B36C; B-C-Mg-Si
OSTI Identifier:
1728865
DOI:
https://doi.org/10.17188/1728865

Citation Formats

The Materials Project. Materials Data on Mg3Si9B36C by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1728865.
The Materials Project. Materials Data on Mg3Si9B36C by Materials Project. United States. doi:https://doi.org/10.17188/1728865
The Materials Project. 2020. "Materials Data on Mg3Si9B36C by Materials Project". United States. doi:https://doi.org/10.17188/1728865. https://www.osti.gov/servlets/purl/1728865. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1728865,
title = {Materials Data on Mg3Si9B36C by Materials Project},
author = {The Materials Project},
abstractNote = {Mg3B36Si9C crystallizes in the trigonal R3m space group. The structure is three-dimensional and consists of six silicon molecules and one Mg3B36Si7C framework. In the Mg3B36Si7C framework, Mg2+ is bonded in a 8-coordinate geometry to eight B+0.83- atoms. There are a spread of Mg–B bond distances ranging from 2.72–2.83 Å. There are eight inequivalent B+0.83- sites. In the first B+0.83- site, B+0.83- is bonded in a 1-coordinate geometry to five B+0.83- and one Si+3.11+ atom. There are a spread of B–B bond distances ranging from 1.75–1.81 Å. The B–Si bond length is 2.04 Å. In the second B+0.83- site, B+0.83- is bonded in a 1-coordinate geometry to five B+0.83- and one Si+3.11+ atom. There is two shorter (1.75 Å) and two longer (1.82 Å) B–B bond length. The B–Si bond length is 1.95 Å. In the third B+0.83- site, B+0.83- is bonded in a 1-coordinate geometry to five B+0.83- and one Si+3.11+ atom. There are a spread of B–B bond distances ranging from 1.79–1.86 Å. The B–Si bond length is 2.05 Å. In the fourth B+0.83- site, B+0.83- is bonded in a single-bond geometry to five B+0.83- and one C4- atom. There is two shorter (1.80 Å) and two longer (1.81 Å) B–B bond length. The B–C bond length is 1.62 Å. In the fifth B+0.83- site, B+0.83- is bonded in a 7-coordinate geometry to one Mg2+ and six B+0.83- atoms. There are a spread of B–B bond distances ranging from 1.78–1.82 Å. In the sixth B+0.83- site, B+0.83- is bonded in a 7-coordinate geometry to one Mg2+ and six B+0.83- atoms. There are a spread of B–B bond distances ranging from 1.72–1.82 Å. In the seventh B+0.83- site, B+0.83- is bonded in a 1-coordinate geometry to one Mg2+, five B+0.83-, and one Si+3.11+ atom. The B–B bond length is 1.77 Å. The B–Si bond length is 2.06 Å. In the eighth B+0.83- site, B+0.83- is bonded in a 1-coordinate geometry to one Mg2+, five B+0.83-, and one Si+3.11+ atom. The B–Si bond length is 2.04 Å. There are three inequivalent Si+3.11+ sites. In the first Si+3.11+ site, Si+3.11+ is bonded in a trigonal non-coplanar geometry to three B+0.83- atoms. In the second Si+3.11+ site, Si+3.11+ is bonded in a trigonal non-coplanar geometry to three B+0.83- atoms. In the third Si+3.11+ site, Si+3.11+ is bonded in a distorted tetrahedral geometry to three equivalent B+0.83- and one C4- atom. The Si–C bond length is 1.84 Å. C4- is bonded in a tetrahedral geometry to three equivalent B+0.83- and one Si+3.11+ atom.},
doi = {10.17188/1728865},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}