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Title: Materials Data on Rb3MgH5 by Materials Project

Abstract

Rb3MgH5 crystallizes in the tetragonal P4/ncc space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 6-coordinate geometry to six H1- atoms. There are a spread of Rb–H bond distances ranging from 2.97–3.20 Å. In the second Rb1+ site, Rb1+ is bonded to six H1- atoms to form distorted RbH6 pentagonal pyramids that share corners with two equivalent RbH6 pentagonal pyramids, corners with four equivalent MgH4 tetrahedra, and edges with four equivalent RbH6 pentagonal pyramids. There are a spread of Rb–H bond distances ranging from 2.90–3.04 Å. Mg2+ is bonded to four equivalent H1- atoms to form MgH4 tetrahedra that share corners with eight equivalent RbH6 pentagonal pyramids. All Mg–H bond lengths are 1.86 Å. There are two inequivalent H1- sites. In the first H1- site, H1- is bonded to six Rb1+ atoms to form distorted corner-sharing HRb6 octahedra. The corner-sharing octahedra tilt angles range from 0–28°. In the second H1- site, H1- is bonded in a distorted rectangular see-saw-like geometry to three Rb1+ and one Mg2+ atom.

Publication Date:
Other Number(s):
mp-23948
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; Rb3MgH5; H-Mg-Rb
OSTI Identifier:
1199822
DOI:
https://doi.org/10.17188/1199822

Citation Formats

The Materials Project. Materials Data on Rb3MgH5 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1199822.
The Materials Project. Materials Data on Rb3MgH5 by Materials Project. United States. doi:https://doi.org/10.17188/1199822
The Materials Project. 2020. "Materials Data on Rb3MgH5 by Materials Project". United States. doi:https://doi.org/10.17188/1199822. https://www.osti.gov/servlets/purl/1199822. Pub date:Sat May 02 00:00:00 EDT 2020
@article{osti_1199822,
title = {Materials Data on Rb3MgH5 by Materials Project},
author = {The Materials Project},
abstractNote = {Rb3MgH5 crystallizes in the tetragonal P4/ncc space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 6-coordinate geometry to six H1- atoms. There are a spread of Rb–H bond distances ranging from 2.97–3.20 Å. In the second Rb1+ site, Rb1+ is bonded to six H1- atoms to form distorted RbH6 pentagonal pyramids that share corners with two equivalent RbH6 pentagonal pyramids, corners with four equivalent MgH4 tetrahedra, and edges with four equivalent RbH6 pentagonal pyramids. There are a spread of Rb–H bond distances ranging from 2.90–3.04 Å. Mg2+ is bonded to four equivalent H1- atoms to form MgH4 tetrahedra that share corners with eight equivalent RbH6 pentagonal pyramids. All Mg–H bond lengths are 1.86 Å. There are two inequivalent H1- sites. In the first H1- site, H1- is bonded to six Rb1+ atoms to form distorted corner-sharing HRb6 octahedra. The corner-sharing octahedra tilt angles range from 0–28°. In the second H1- site, H1- is bonded in a distorted rectangular see-saw-like geometry to three Rb1+ and one Mg2+ atom.},
doi = {10.17188/1199822},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}