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Title: Materials Data on BaSm2O4 by Materials Project

Abstract

Sm2BaO4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ba2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ba–O bond distances ranging from 2.77–3.02 Å. There are two inequivalent Sm3+ sites. In the first Sm3+ site, Sm3+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing SmO6 octahedra. The corner-sharing octahedra tilt angles range from 51–61°. There are a spread of Sm–O bond distances ranging from 2.33–2.43 Å. In the second Sm3+ site, Sm3+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing SmO6 octahedra. The corner-sharing octahedra tilt angles range from 51–61°. There are a spread of Sm–O bond distances ranging from 2.32–2.45 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ba2+ and three equivalent Sm3+ atoms to form a mixture of distorted corner and edge-sharing OBa2Sm3 trigonal bipyramids. In the second O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Ba2+ and three Sm3+ atoms. In the third O2- site, O2- is bonded to two equivalent Ba2+ and three equivalent Sm3+ atoms to form amore » mixture of distorted corner and edge-sharing OBa2Sm3 square pyramids. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Ba2+ and three Sm3+ atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-17960
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; BaSm2O4; Ba-O-Sm
OSTI Identifier:
1192800
DOI:
https://doi.org/10.17188/1192800

Citation Formats

The Materials Project. Materials Data on BaSm2O4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1192800.
The Materials Project. Materials Data on BaSm2O4 by Materials Project. United States. doi:https://doi.org/10.17188/1192800
The Materials Project. 2020. "Materials Data on BaSm2O4 by Materials Project". United States. doi:https://doi.org/10.17188/1192800. https://www.osti.gov/servlets/purl/1192800. Pub date:Thu Jul 23 00:00:00 EDT 2020
@article{osti_1192800,
title = {Materials Data on BaSm2O4 by Materials Project},
author = {The Materials Project},
abstractNote = {Sm2BaO4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ba2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ba–O bond distances ranging from 2.77–3.02 Å. There are two inequivalent Sm3+ sites. In the first Sm3+ site, Sm3+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing SmO6 octahedra. The corner-sharing octahedra tilt angles range from 51–61°. There are a spread of Sm–O bond distances ranging from 2.33–2.43 Å. In the second Sm3+ site, Sm3+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing SmO6 octahedra. The corner-sharing octahedra tilt angles range from 51–61°. There are a spread of Sm–O bond distances ranging from 2.32–2.45 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ba2+ and three equivalent Sm3+ atoms to form a mixture of distorted corner and edge-sharing OBa2Sm3 trigonal bipyramids. In the second O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Ba2+ and three Sm3+ atoms. In the third O2- site, O2- is bonded to two equivalent Ba2+ and three equivalent Sm3+ atoms to form a mixture of distorted corner and edge-sharing OBa2Sm3 square pyramids. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Ba2+ and three Sm3+ atoms.},
doi = {10.17188/1192800},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}