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Title: Materials Data on Er2MgS4 by Materials Project

Abstract

MgEr2S4 is Spinel-like structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Mg2+ is bonded to four S2- atoms to form MgS4 tetrahedra that share corners with six ErS6 octahedra and edges with three ErS6 octahedra. The corner-sharing octahedra tilt angles range from 60–66°. There are a spread of Mg–S bond distances ranging from 2.39–2.48 Å. There are two inequivalent Er3+ sites. In the first Er3+ site, Er3+ is bonded to six S2- atoms to form ErS6 octahedra that share corners with four equivalent ErS6 octahedra, corners with two equivalent MgS4 tetrahedra, edges with four ErS6 octahedra, and edges with two equivalent MgS4 tetrahedra. The corner-sharing octahedra tilt angles range from 50–54°. There are a spread of Er–S bond distances ranging from 2.68–2.76 Å. In the second Er3+ site, Er3+ is bonded to six S2- atoms to form ErS6 octahedra that share corners with eight ErS6 octahedra, corners with four equivalent MgS4 tetrahedra, edges with two equivalent ErS6 octahedra, and an edgeedge with one MgS4 tetrahedra. The corner-sharing octahedra tilt angles range from 47–54°. There are a spread of Er–S bond distances ranging from 2.69–2.80 Å. There are three inequivalent S2- sites. In the first S2-more » site, S2- is bonded in a rectangular see-saw-like geometry to one Mg2+ and three Er3+ atoms. In the second S2- site, S2- is bonded in a rectangular see-saw-like geometry to one Mg2+ and three Er3+ atoms. In the third S2- site, S2- is bonded to one Mg2+ and three Er3+ atoms to form distorted corner-sharing SEr3Mg tetrahedra.« less

Publication Date:
Other Number(s):
mp-1232105
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; Er2MgS4; Er-Mg-S
OSTI Identifier:
1707285
DOI:
https://doi.org/10.17188/1707285

Citation Formats

The Materials Project. Materials Data on Er2MgS4 by Materials Project. United States: N. p., 2019. Web. doi:10.17188/1707285.
The Materials Project. Materials Data on Er2MgS4 by Materials Project. United States. doi:https://doi.org/10.17188/1707285
The Materials Project. 2019. "Materials Data on Er2MgS4 by Materials Project". United States. doi:https://doi.org/10.17188/1707285. https://www.osti.gov/servlets/purl/1707285. Pub date:Wed Jan 16 00:00:00 EST 2019
@article{osti_1707285,
title = {Materials Data on Er2MgS4 by Materials Project},
author = {The Materials Project},
abstractNote = {MgEr2S4 is Spinel-like structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Mg2+ is bonded to four S2- atoms to form MgS4 tetrahedra that share corners with six ErS6 octahedra and edges with three ErS6 octahedra. The corner-sharing octahedra tilt angles range from 60–66°. There are a spread of Mg–S bond distances ranging from 2.39–2.48 Å. There are two inequivalent Er3+ sites. In the first Er3+ site, Er3+ is bonded to six S2- atoms to form ErS6 octahedra that share corners with four equivalent ErS6 octahedra, corners with two equivalent MgS4 tetrahedra, edges with four ErS6 octahedra, and edges with two equivalent MgS4 tetrahedra. The corner-sharing octahedra tilt angles range from 50–54°. There are a spread of Er–S bond distances ranging from 2.68–2.76 Å. In the second Er3+ site, Er3+ is bonded to six S2- atoms to form ErS6 octahedra that share corners with eight ErS6 octahedra, corners with four equivalent MgS4 tetrahedra, edges with two equivalent ErS6 octahedra, and an edgeedge with one MgS4 tetrahedra. The corner-sharing octahedra tilt angles range from 47–54°. There are a spread of Er–S bond distances ranging from 2.69–2.80 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a rectangular see-saw-like geometry to one Mg2+ and three Er3+ atoms. In the second S2- site, S2- is bonded in a rectangular see-saw-like geometry to one Mg2+ and three Er3+ atoms. In the third S2- site, S2- is bonded to one Mg2+ and three Er3+ atoms to form distorted corner-sharing SEr3Mg tetrahedra.},
doi = {10.17188/1707285},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}