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Title: Materials Data on Rb(SnAs)3 by Materials Project

Abstract

RbSn3As3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Rb1+ is bonded in a 6-coordinate geometry to six As3- atoms. There are a spread of Rb–As bond distances ranging from 3.55–3.81 Å. There are three inequivalent Sn+2.67+ sites. In the first Sn+2.67+ site, Sn+2.67+ is bonded to four As3- atoms to form corner-sharing SnAs4 tetrahedra. There are a spread of Sn–As bond distances ranging from 2.64–2.70 Å. In the second Sn+2.67+ site, Sn+2.67+ is bonded in a distorted trigonal non-coplanar geometry to three As3- atoms. There are one shorter (2.71 Å) and two longer (2.73 Å) Sn–As bond lengths. In the third Sn+2.67+ site, Sn+2.67+ is bonded in a water-like geometry to two equivalent As3- atoms. Both Sn–As bond lengths are 2.77 Å. There are three inequivalent As3- sites. In the first As3- site, As3- is bonded to three equivalent Rb1+ and three Sn+2.67+ atoms to form AsRb3Sn3 octahedra that share corners with two equivalent AsRb2Sn3 square pyramids, edges with four equivalent AsRb3Sn3 octahedra, and edges with three equivalent AsRb2Sn3 square pyramids. In the second As3- site, As3- is bonded to two equivalent Rb1+ and three Sn+2.67+ atoms to form AsRb2Sn3 square pyramids that share corners withmore » two equivalent AsRb3Sn3 octahedra, edges with three equivalent AsRb3Sn3 octahedra, and edges with two equivalent AsRb2Sn3 square pyramids. The corner-sharing octahedral tilt angles are 15°. In the third As3- site, As3- is bonded in a rectangular see-saw-like geometry to one Rb1+ and three Sn+2.67+ atoms.« less

Publication Date:
Other Number(s):
mp-1192409
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; Rb(SnAs)3; As-Rb-Sn
OSTI Identifier:
1687459
DOI:
https://doi.org/10.17188/1687459

Citation Formats

The Materials Project. Materials Data on Rb(SnAs)3 by Materials Project. United States: N. p., 2019. Web. doi:10.17188/1687459.
The Materials Project. Materials Data on Rb(SnAs)3 by Materials Project. United States. doi:https://doi.org/10.17188/1687459
The Materials Project. 2019. "Materials Data on Rb(SnAs)3 by Materials Project". United States. doi:https://doi.org/10.17188/1687459. https://www.osti.gov/servlets/purl/1687459. Pub date:Fri Jan 11 00:00:00 EST 2019
@article{osti_1687459,
title = {Materials Data on Rb(SnAs)3 by Materials Project},
author = {The Materials Project},
abstractNote = {RbSn3As3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Rb1+ is bonded in a 6-coordinate geometry to six As3- atoms. There are a spread of Rb–As bond distances ranging from 3.55–3.81 Å. There are three inequivalent Sn+2.67+ sites. In the first Sn+2.67+ site, Sn+2.67+ is bonded to four As3- atoms to form corner-sharing SnAs4 tetrahedra. There are a spread of Sn–As bond distances ranging from 2.64–2.70 Å. In the second Sn+2.67+ site, Sn+2.67+ is bonded in a distorted trigonal non-coplanar geometry to three As3- atoms. There are one shorter (2.71 Å) and two longer (2.73 Å) Sn–As bond lengths. In the third Sn+2.67+ site, Sn+2.67+ is bonded in a water-like geometry to two equivalent As3- atoms. Both Sn–As bond lengths are 2.77 Å. There are three inequivalent As3- sites. In the first As3- site, As3- is bonded to three equivalent Rb1+ and three Sn+2.67+ atoms to form AsRb3Sn3 octahedra that share corners with two equivalent AsRb2Sn3 square pyramids, edges with four equivalent AsRb3Sn3 octahedra, and edges with three equivalent AsRb2Sn3 square pyramids. In the second As3- site, As3- is bonded to two equivalent Rb1+ and three Sn+2.67+ atoms to form AsRb2Sn3 square pyramids that share corners with two equivalent AsRb3Sn3 octahedra, edges with three equivalent AsRb3Sn3 octahedra, and edges with two equivalent AsRb2Sn3 square pyramids. The corner-sharing octahedral tilt angles are 15°. In the third As3- site, As3- is bonded in a rectangular see-saw-like geometry to one Rb1+ and three Sn+2.67+ atoms.},
doi = {10.17188/1687459},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}