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Title: Materials Data on La2(SiO3)3 by Materials Project

Abstract

La2(SiO3)3 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. La3+ is bonded to six equivalent O2- atoms to form distorted LaO6 octahedra that share corners with six equivalent SiO4 tetrahedra and edges with three equivalent LaO6 octahedra. There are three shorter (2.38 Å) and three longer (2.56 Å) La–O bond lengths. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent LaO6 octahedra and corners with two equivalent SiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 44–64°. There are a spread of Si–O bond distances ranging from 1.63–1.67 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Si4+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent La3+ and one Si4+ atom.

Authors:
Publication Date:
Other Number(s):
mp-756888
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; La2(SiO3)3; La-O-Si
OSTI Identifier:
1290653
DOI:
https://doi.org/10.17188/1290653

Citation Formats

The Materials Project. Materials Data on La2(SiO3)3 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1290653.
The Materials Project. Materials Data on La2(SiO3)3 by Materials Project. United States. doi:https://doi.org/10.17188/1290653
The Materials Project. 2020. "Materials Data on La2(SiO3)3 by Materials Project". United States. doi:https://doi.org/10.17188/1290653. https://www.osti.gov/servlets/purl/1290653. Pub date:Sun May 03 00:00:00 EDT 2020
@article{osti_1290653,
title = {Materials Data on La2(SiO3)3 by Materials Project},
author = {The Materials Project},
abstractNote = {La2(SiO3)3 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. La3+ is bonded to six equivalent O2- atoms to form distorted LaO6 octahedra that share corners with six equivalent SiO4 tetrahedra and edges with three equivalent LaO6 octahedra. There are three shorter (2.38 Å) and three longer (2.56 Å) La–O bond lengths. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent LaO6 octahedra and corners with two equivalent SiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 44–64°. There are a spread of Si–O bond distances ranging from 1.63–1.67 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Si4+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent La3+ and one Si4+ atom.},
doi = {10.17188/1290653},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}