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Title: Materials Data on Ca3Ga2Si(SnO6)2 by Materials Project

Abstract

Ca3Ga2Si(SnO6)2 crystallizes in the tetragonal I4_1/acd space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are four shorter (2.47 Å) and four longer (2.51 Å) Ca–O bond lengths. In the second Ca2+ site, Ca2+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.39–2.66 Å. Ga3+ is bonded to four O2- atoms to form GaO4 tetrahedra that share corners with four equivalent SnO6 octahedra. The corner-sharing octahedra tilt angles range from 52–54°. There is two shorter (1.87 Å) and two longer (1.88 Å) Ga–O bond length. Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with two equivalent SiO4 tetrahedra and corners with four equivalent GaO4 tetrahedra. There are four shorter (2.06 Å) and two longer (2.16 Å) Sn–O bond lengths. Si4+ is bonded to four equivalent O2- atoms to form SiO4 tetrahedra that share corners with four equivalent SnO6 octahedra. The corner-sharing octahedral tilt angles are 45°. All Si–O bond lengths are 1.66 Å. There are three inequivalent O2-more » sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Sn4+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Ga3+, and one Sn4+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ca2+, one Ga3+, and one Sn4+ atom.« less

Authors:
Contributors:
Researcher:
Publication Date:
Other Number(s):
mp-695070
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; Ca3Ga2Si(SnO6)2; Ca-Ga-O-Si-Sn
OSTI Identifier:
1284778
DOI:
10.17188/1284778

Citation Formats

Persson, Kristin, and Project, Materials. Materials Data on Ca3Ga2Si(SnO6)2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1284778.
Persson, Kristin, & Project, Materials. Materials Data on Ca3Ga2Si(SnO6)2 by Materials Project. United States. doi:10.17188/1284778.
Persson, Kristin, and Project, Materials. 2020. "Materials Data on Ca3Ga2Si(SnO6)2 by Materials Project". United States. doi:10.17188/1284778. https://www.osti.gov/servlets/purl/1284778. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1284778,
title = {Materials Data on Ca3Ga2Si(SnO6)2 by Materials Project},
author = {Persson, Kristin and Project, Materials},
abstractNote = {Ca3Ga2Si(SnO6)2 crystallizes in the tetragonal I4_1/acd space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are four shorter (2.47 Å) and four longer (2.51 Å) Ca–O bond lengths. In the second Ca2+ site, Ca2+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.39–2.66 Å. Ga3+ is bonded to four O2- atoms to form GaO4 tetrahedra that share corners with four equivalent SnO6 octahedra. The corner-sharing octahedra tilt angles range from 52–54°. There is two shorter (1.87 Å) and two longer (1.88 Å) Ga–O bond length. Sn4+ is bonded to six O2- atoms to form SnO6 octahedra that share corners with two equivalent SiO4 tetrahedra and corners with four equivalent GaO4 tetrahedra. There are four shorter (2.06 Å) and two longer (2.16 Å) Sn–O bond lengths. Si4+ is bonded to four equivalent O2- atoms to form SiO4 tetrahedra that share corners with four equivalent SnO6 octahedra. The corner-sharing octahedral tilt angles are 45°. All Si–O bond lengths are 1.66 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Sn4+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Ga3+, and one Sn4+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ca2+, one Ga3+, and one Sn4+ atom.},
doi = {10.17188/1284778},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}

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