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Title: Materials Data on K4GeS4 by Materials Project

Abstract

K4GeS4 crystallizes in the cubic P-43n space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded to six S2- atoms to form distorted KS6 octahedra that share corners with six KS6 octahedra, corners with three GeS4 tetrahedra, edges with twelve KS6 octahedra, and a faceface with one GeS4 tetrahedra. The corner-sharing octahedra tilt angles range from 19–26°. There are a spread of K–S bond distances ranging from 3.21–3.42 Å. In the second K1+ site, K1+ is bonded to six S2- atoms to form distorted KS6 octahedra that share corners with six equivalent KS6 octahedra, corners with three equivalent GeS4 tetrahedra, edges with twelve KS6 octahedra, and a faceface with one GeS4 tetrahedra. The corner-sharing octahedra tilt angles range from 21–22°. There are three shorter (3.31 Å) and three longer (3.40 Å) K–S bond lengths. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four equivalent S2- atoms to form GeS4 tetrahedra that share corners with twelve KS6 octahedra and faces with four equivalent KS6 octahedra. The corner-sharing octahedra tilt angles range from 45–52°. All Ge–S bond lengths are 2.25 Å. In the second Ge4+more » site, Ge4+ is bonded to four equivalent S2- atoms to form GeS4 tetrahedra that share corners with twelve equivalent KS6 octahedra and faces with four equivalent KS6 octahedra. The corner-sharing octahedral tilt angles are 52°. All Ge–S bond lengths are 2.24 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 7-coordinate geometry to six K1+ and one Ge4+ atom. In the second S2- site, S2- is bonded in a 7-coordinate geometry to six K1+ and one Ge4+ atom.« less

Authors:
Publication Date:
Other Number(s):
mp-556627
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; K4GeS4; Ge-K-S
OSTI Identifier:
1269451
DOI:
https://doi.org/10.17188/1269451

Citation Formats

The Materials Project. Materials Data on K4GeS4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1269451.
The Materials Project. Materials Data on K4GeS4 by Materials Project. United States. doi:https://doi.org/10.17188/1269451
The Materials Project. 2020. "Materials Data on K4GeS4 by Materials Project". United States. doi:https://doi.org/10.17188/1269451. https://www.osti.gov/servlets/purl/1269451. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1269451,
title = {Materials Data on K4GeS4 by Materials Project},
author = {The Materials Project},
abstractNote = {K4GeS4 crystallizes in the cubic P-43n space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded to six S2- atoms to form distorted KS6 octahedra that share corners with six KS6 octahedra, corners with three GeS4 tetrahedra, edges with twelve KS6 octahedra, and a faceface with one GeS4 tetrahedra. The corner-sharing octahedra tilt angles range from 19–26°. There are a spread of K–S bond distances ranging from 3.21–3.42 Å. In the second K1+ site, K1+ is bonded to six S2- atoms to form distorted KS6 octahedra that share corners with six equivalent KS6 octahedra, corners with three equivalent GeS4 tetrahedra, edges with twelve KS6 octahedra, and a faceface with one GeS4 tetrahedra. The corner-sharing octahedra tilt angles range from 21–22°. There are three shorter (3.31 Å) and three longer (3.40 Å) K–S bond lengths. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four equivalent S2- atoms to form GeS4 tetrahedra that share corners with twelve KS6 octahedra and faces with four equivalent KS6 octahedra. The corner-sharing octahedra tilt angles range from 45–52°. All Ge–S bond lengths are 2.25 Å. In the second Ge4+ site, Ge4+ is bonded to four equivalent S2- atoms to form GeS4 tetrahedra that share corners with twelve equivalent KS6 octahedra and faces with four equivalent KS6 octahedra. The corner-sharing octahedral tilt angles are 52°. All Ge–S bond lengths are 2.24 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 7-coordinate geometry to six K1+ and one Ge4+ atom. In the second S2- site, S2- is bonded in a 7-coordinate geometry to six K1+ and one Ge4+ atom.},
doi = {10.17188/1269451},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}