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Title: Materials Data on Ba2Mg17 by Materials Project

Abstract

Mg17Ba2 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ba is bonded in a 7-coordinate geometry to nineteen Mg atoms. There are a spread of Ba–Mg bond distances ranging from 3.69–4.07 Å. There are four inequivalent Mg sites. In the first Mg site, Mg is bonded in a 10-coordinate geometry to two equivalent Ba and eight Mg atoms. There are a spread of Mg–Mg bond distances ranging from 3.06–3.28 Å. In the second Mg site, Mg is bonded to three equivalent Ba and nine Mg atoms to form MgBa3Mg9 cuboctahedra that share corners with fifteen MgBa3Mg9 cuboctahedra, edges with eight MgBa2Mg10 cuboctahedra, and faces with ten MgBa3Mg9 cuboctahedra. There are four shorter (3.08 Å) and one longer (3.29 Å) Mg–Mg bond lengths. In the third Mg site, Mg is bonded in a 8-coordinate geometry to one Ba and seven Mg atoms. There are one shorter (3.13 Å) and three longer (3.25 Å) Mg–Mg bond lengths. In the fourth Mg site, Mg is bonded to two equivalent Ba and ten Mg atoms to form a mixture of distorted face, edge, and corner-sharing MgBa2Mg10 cuboctahedra.

Publication Date:
Other Number(s):
mp-1813
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; Ba2Mg17; Ba-Mg
OSTI Identifier:
1192918
DOI:
https://doi.org/10.17188/1192918

Citation Formats

The Materials Project. Materials Data on Ba2Mg17 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1192918.
The Materials Project. Materials Data on Ba2Mg17 by Materials Project. United States. doi:https://doi.org/10.17188/1192918
The Materials Project. 2020. "Materials Data on Ba2Mg17 by Materials Project". United States. doi:https://doi.org/10.17188/1192918. https://www.osti.gov/servlets/purl/1192918. Pub date:Tue Jul 14 00:00:00 EDT 2020
@article{osti_1192918,
title = {Materials Data on Ba2Mg17 by Materials Project},
author = {The Materials Project},
abstractNote = {Mg17Ba2 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ba is bonded in a 7-coordinate geometry to nineteen Mg atoms. There are a spread of Ba–Mg bond distances ranging from 3.69–4.07 Å. There are four inequivalent Mg sites. In the first Mg site, Mg is bonded in a 10-coordinate geometry to two equivalent Ba and eight Mg atoms. There are a spread of Mg–Mg bond distances ranging from 3.06–3.28 Å. In the second Mg site, Mg is bonded to three equivalent Ba and nine Mg atoms to form MgBa3Mg9 cuboctahedra that share corners with fifteen MgBa3Mg9 cuboctahedra, edges with eight MgBa2Mg10 cuboctahedra, and faces with ten MgBa3Mg9 cuboctahedra. There are four shorter (3.08 Å) and one longer (3.29 Å) Mg–Mg bond lengths. In the third Mg site, Mg is bonded in a 8-coordinate geometry to one Ba and seven Mg atoms. There are one shorter (3.13 Å) and three longer (3.25 Å) Mg–Mg bond lengths. In the fourth Mg site, Mg is bonded to two equivalent Ba and ten Mg atoms to form a mixture of distorted face, edge, and corner-sharing MgBa2Mg10 cuboctahedra.},
doi = {10.17188/1192918},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}