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Title: Materials Data on Sm3ReO7 by Materials Project

Abstract

Sm3ReO7 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Sm3+ sites. In the first Sm3+ site, Sm3+ is bonded to seven O2- atoms to form distorted SmO7 pentagonal bipyramids that share corners with two equivalent ReO6 octahedra, corners with three equivalent SmO7 pentagonal bipyramids, edges with two equivalent ReO6 octahedra, and edges with two equivalent SmO7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 37°. There are a spread of Sm–O bond distances ranging from 2.28–2.59 Å. In the second Sm3+ site, Sm3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.38 Å) and four longer (2.72 Å) Sm–O bond lengths. Re5+ is bonded to six O2- atoms to form ReO6 octahedra that share corners with two equivalent ReO6 octahedra, corners with four equivalent SmO7 pentagonal bipyramids, and edges with four equivalent SmO7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 36°. There is four shorter (1.98 Å) and two longer (1.99 Å) Re–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four Sm3+ atoms to form a mixture of edge and corner-sharing OSm4 tetrahedra. In themore » second O2- site, O2- is bonded in a 4-coordinate geometry to three Sm3+ and one Re5+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Sm3+ and two equivalent Re5+ atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-15281
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; Sm3ReO7; O-Re-Sm
OSTI Identifier:
1191090
DOI:
https://doi.org/10.17188/1191090

Citation Formats

The Materials Project. Materials Data on Sm3ReO7 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1191090.
The Materials Project. Materials Data on Sm3ReO7 by Materials Project. United States. doi:https://doi.org/10.17188/1191090
The Materials Project. 2020. "Materials Data on Sm3ReO7 by Materials Project". United States. doi:https://doi.org/10.17188/1191090. https://www.osti.gov/servlets/purl/1191090. Pub date:Wed Jul 15 00:00:00 EDT 2020
@article{osti_1191090,
title = {Materials Data on Sm3ReO7 by Materials Project},
author = {The Materials Project},
abstractNote = {Sm3ReO7 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Sm3+ sites. In the first Sm3+ site, Sm3+ is bonded to seven O2- atoms to form distorted SmO7 pentagonal bipyramids that share corners with two equivalent ReO6 octahedra, corners with three equivalent SmO7 pentagonal bipyramids, edges with two equivalent ReO6 octahedra, and edges with two equivalent SmO7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 37°. There are a spread of Sm–O bond distances ranging from 2.28–2.59 Å. In the second Sm3+ site, Sm3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.38 Å) and four longer (2.72 Å) Sm–O bond lengths. Re5+ is bonded to six O2- atoms to form ReO6 octahedra that share corners with two equivalent ReO6 octahedra, corners with four equivalent SmO7 pentagonal bipyramids, and edges with four equivalent SmO7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 36°. There is four shorter (1.98 Å) and two longer (1.99 Å) Re–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four Sm3+ atoms to form a mixture of edge and corner-sharing OSm4 tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Sm3+ and one Re5+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Sm3+ and two equivalent Re5+ atoms.},
doi = {10.17188/1191090},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 15 00:00:00 EDT 2020},
month = {Wed Jul 15 00:00:00 EDT 2020}
}