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Title: Materials Data on KEuGeS4 by Materials Project

Abstract

KEuGeS4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of K–S bond distances ranging from 3.35–3.64 Å. Eu3+ is bonded to seven S2- atoms to form distorted EuS7 pentagonal bipyramids that share corners with two equivalent EuS7 pentagonal bipyramids, a cornercorner with one GeS4 tetrahedra, edges with two equivalent EuS7 pentagonal bipyramids, and edges with three equivalent GeS4 tetrahedra. There are a spread of Eu–S bond distances ranging from 2.90–3.03 Å. Ge4+ is bonded to four S2- atoms to form GeS4 tetrahedra that share a cornercorner with one EuS7 pentagonal bipyramid and edges with three equivalent EuS7 pentagonal bipyramids. There are a spread of Ge–S bond distances ranging from 2.20–2.24 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted see-saw-like geometry to one K1+, two equivalent Eu3+, and one Ge4+ atom. In the second S2- site, S2- is bonded to three equivalent K1+, one Eu3+, and one Ge4+ atom to form a mixture of distorted edge and corner-sharing SK3EuGe trigonal bipyramids. In the third S2- site, S2- is bonded in a 5-coordinate geometrymore » to two equivalent K1+, two equivalent Eu3+, and one Ge4+ atom. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent K1+, two equivalent Eu3+, and one Ge4+ atom.« less

Publication Date:
Other Number(s):
mp-21903
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; KEuGeS4; Eu-Ge-K-S
OSTI Identifier:
1197242
DOI:
https://doi.org/10.17188/1197242

Citation Formats

The Materials Project. Materials Data on KEuGeS4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1197242.
The Materials Project. Materials Data on KEuGeS4 by Materials Project. United States. doi:https://doi.org/10.17188/1197242
The Materials Project. 2020. "Materials Data on KEuGeS4 by Materials Project". United States. doi:https://doi.org/10.17188/1197242. https://www.osti.gov/servlets/purl/1197242. Pub date:Fri Jul 17 00:00:00 EDT 2020
@article{osti_1197242,
title = {Materials Data on KEuGeS4 by Materials Project},
author = {The Materials Project},
abstractNote = {KEuGeS4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of K–S bond distances ranging from 3.35–3.64 Å. Eu3+ is bonded to seven S2- atoms to form distorted EuS7 pentagonal bipyramids that share corners with two equivalent EuS7 pentagonal bipyramids, a cornercorner with one GeS4 tetrahedra, edges with two equivalent EuS7 pentagonal bipyramids, and edges with three equivalent GeS4 tetrahedra. There are a spread of Eu–S bond distances ranging from 2.90–3.03 Å. Ge4+ is bonded to four S2- atoms to form GeS4 tetrahedra that share a cornercorner with one EuS7 pentagonal bipyramid and edges with three equivalent EuS7 pentagonal bipyramids. There are a spread of Ge–S bond distances ranging from 2.20–2.24 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted see-saw-like geometry to one K1+, two equivalent Eu3+, and one Ge4+ atom. In the second S2- site, S2- is bonded to three equivalent K1+, one Eu3+, and one Ge4+ atom to form a mixture of distorted edge and corner-sharing SK3EuGe trigonal bipyramids. In the third S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent K1+, two equivalent Eu3+, and one Ge4+ atom. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent K1+, two equivalent Eu3+, and one Ge4+ atom.},
doi = {10.17188/1197242},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}