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Title: Materials Data on MgSiO3 by Materials Project

Abstract

MgSiO3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with four equivalent SiO6 octahedra, edges with two equivalent MgO6 octahedra, and edges with four equivalent SiO6 octahedra. The corner-sharing octahedra tilt angles range from 13–23°. There are a spread of Mg–O bond distances ranging from 2.03–2.13 Å. In the second Mg2+ site, Mg2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mg–O bond distances ranging from 1.96–2.49 Å. Si4+ is bonded to six O2- atoms to form SiO6 octahedra that share corners with two equivalent MgO6 octahedra, edges with two equivalent MgO6 octahedra, and edges with three equivalent SiO6 octahedra. The corner-sharing octahedra tilt angles range from 13–23°. There are a spread of Si–O bond distances ranging from 1.72–1.90 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to three Mg2+ and two equivalent Si4+ atoms to form a mixture of distorted edge and corner-sharing OMg3Si2 square pyramids. In the second O2- site, O2- is bonded in a distortedmore » T-shaped geometry to one Mg2+ and two equivalent Si4+ atoms. In the third O2- site, O2- is bonded in a distorted see-saw-like geometry to two Mg2+ and two equivalent Si4+ atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-603907
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; MgSiO3; Mg-O-Si
OSTI Identifier:
1277369
DOI:
https://doi.org/10.17188/1277369

Citation Formats

The Materials Project. Materials Data on MgSiO3 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1277369.
The Materials Project. Materials Data on MgSiO3 by Materials Project. United States. doi:https://doi.org/10.17188/1277369
The Materials Project. 2020. "Materials Data on MgSiO3 by Materials Project". United States. doi:https://doi.org/10.17188/1277369. https://www.osti.gov/servlets/purl/1277369. Pub date:Fri Jul 17 00:00:00 EDT 2020
@article{osti_1277369,
title = {Materials Data on MgSiO3 by Materials Project},
author = {The Materials Project},
abstractNote = {MgSiO3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with four equivalent SiO6 octahedra, edges with two equivalent MgO6 octahedra, and edges with four equivalent SiO6 octahedra. The corner-sharing octahedra tilt angles range from 13–23°. There are a spread of Mg–O bond distances ranging from 2.03–2.13 Å. In the second Mg2+ site, Mg2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mg–O bond distances ranging from 1.96–2.49 Å. Si4+ is bonded to six O2- atoms to form SiO6 octahedra that share corners with two equivalent MgO6 octahedra, edges with two equivalent MgO6 octahedra, and edges with three equivalent SiO6 octahedra. The corner-sharing octahedra tilt angles range from 13–23°. There are a spread of Si–O bond distances ranging from 1.72–1.90 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to three Mg2+ and two equivalent Si4+ atoms to form a mixture of distorted edge and corner-sharing OMg3Si2 square pyramids. In the second O2- site, O2- is bonded in a distorted T-shaped geometry to one Mg2+ and two equivalent Si4+ atoms. In the third O2- site, O2- is bonded in a distorted see-saw-like geometry to two Mg2+ and two equivalent Si4+ atoms.},
doi = {10.17188/1277369},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jul 17 00:00:00 EDT 2020},
month = {Fri Jul 17 00:00:00 EDT 2020}
}