U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Ca2MgSi2O7 by Materials Project
Abstract
Ca2MgSi2O7 crystallizes in the tetragonal P-42_1m space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.42–2.78 Å. Mg2+ is bonded to four equivalent O2- atoms to form MgO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra. All Mg–O bond lengths are 1.94 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one SiO4 tetrahedra and corners with two equivalent MgO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.68 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ca2+, one Mg2+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three equivalent Ca2+ and one Si4+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ca2+ and two equivalent Si4+ atoms.
- Authors:
- Publication Date:
- Other Number(s):
- mp-6094
- 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; Ca2MgSi2O7; Ca-Mg-O-Si
- OSTI Identifier:
- 1272857
- DOI:
- https://doi.org/10.17188/1272857
Citation Formats
The Materials Project. Materials Data on Ca2MgSi2O7 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1272857.
The Materials Project. Materials Data on Ca2MgSi2O7 by Materials Project. United States. doi:https://doi.org/10.17188/1272857
The Materials Project. 2020.
"Materials Data on Ca2MgSi2O7 by Materials Project". United States. doi:https://doi.org/10.17188/1272857. https://www.osti.gov/servlets/purl/1272857. Pub date:Tue Jul 14 00:00:00 EDT 2020
@article{osti_1272857,
title = {Materials Data on Ca2MgSi2O7 by Materials Project},
author = {The Materials Project},
abstractNote = {Ca2MgSi2O7 crystallizes in the tetragonal P-42_1m space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.42–2.78 Å. Mg2+ is bonded to four equivalent O2- atoms to form MgO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra. All Mg–O bond lengths are 1.94 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one SiO4 tetrahedra and corners with two equivalent MgO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.68 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ca2+, one Mg2+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three equivalent Ca2+ and one Si4+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ca2+ and two equivalent Si4+ atoms.},
doi = {10.17188/1272857},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 14 00:00:00 EDT 2020},
month = {Tue Jul 14 00:00:00 EDT 2020}
}