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Title: Materials Data on NaLaS2 by Materials Project

Abstract

NaLaS2 is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Na1+ is bonded to six S2- atoms to form NaS6 octahedra that share corners with six equivalent NaS6 octahedra, edges with four equivalent NaS6 octahedra, and edges with eight equivalent LaS6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.83 Å) and four longer (2.97 Å) Na–S bond lengths. La3+ is bonded to six S2- atoms to form LaS6 octahedra that share corners with six equivalent LaS6 octahedra, edges with four equivalent LaS6 octahedra, and edges with eight equivalent NaS6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.83 Å) and four longer (2.97 Å) La–S bond lengths. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded to two equivalent Na1+ and four equivalent La3+ atoms to form a mixture of corner and edge-sharing SNa2La4 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second S2- site, S2- is bonded to four equivalent Na1+ and two equivalent La3+ atoms to form SNa4La2 octahedra that share corners with six equivalent SNa4La2 octahedra and edges with twelve SNa2La4 octahedra. The corner-sharing octahedralmore » tilt angles are 0°.« less

Authors:
Publication Date:
Other Number(s):
mp-1220712
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; NaLaS2; La-Na-S
OSTI Identifier:
1711985
DOI:
https://doi.org/10.17188/1711985

Citation Formats

The Materials Project. Materials Data on NaLaS2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1711985.
The Materials Project. Materials Data on NaLaS2 by Materials Project. United States. doi:https://doi.org/10.17188/1711985
The Materials Project. 2020. "Materials Data on NaLaS2 by Materials Project". United States. doi:https://doi.org/10.17188/1711985. https://www.osti.gov/servlets/purl/1711985. Pub date:Sat May 02 00:00:00 EDT 2020
@article{osti_1711985,
title = {Materials Data on NaLaS2 by Materials Project},
author = {The Materials Project},
abstractNote = {NaLaS2 is Caswellsilverite-like structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Na1+ is bonded to six S2- atoms to form NaS6 octahedra that share corners with six equivalent NaS6 octahedra, edges with four equivalent NaS6 octahedra, and edges with eight equivalent LaS6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.83 Å) and four longer (2.97 Å) Na–S bond lengths. La3+ is bonded to six S2- atoms to form LaS6 octahedra that share corners with six equivalent LaS6 octahedra, edges with four equivalent LaS6 octahedra, and edges with eight equivalent NaS6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.83 Å) and four longer (2.97 Å) La–S bond lengths. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded to two equivalent Na1+ and four equivalent La3+ atoms to form a mixture of corner and edge-sharing SNa2La4 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second S2- site, S2- is bonded to four equivalent Na1+ and two equivalent La3+ atoms to form SNa4La2 octahedra that share corners with six equivalent SNa4La2 octahedra and edges with twelve SNa2La4 octahedra. The corner-sharing octahedral tilt angles are 0°.},
doi = {10.17188/1711985},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}