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Title: Materials Data on Ca4MgAl3 by Materials Project

Abstract

Ca4Al3Mg crystallizes in the orthorhombic Pbcm space group. The structure is three-dimensional. there are four inequivalent Ca sites. In the first Ca site, Ca is bonded in a 6-coordinate geometry to eight Al atoms. There are a spread of Ca–Al bond distances ranging from 3.22–3.63 Å. In the second Ca site, Ca is bonded in a 6-coordinate geometry to six Al atoms. There are a spread of Ca–Al bond distances ranging from 3.25–3.44 Å. In the third Ca site, Ca is bonded in a 2-coordinate geometry to six Al atoms. There are a spread of Ca–Al bond distances ranging from 3.17–3.50 Å. In the fourth Ca site, Ca is bonded in a 4-coordinate geometry to four Al atoms. There are a spread of Ca–Al bond distances ranging from 3.21–3.39 Å. Mg is bonded in a distorted linear geometry to two equivalent Al atoms. Both Mg–Al bond lengths are 2.82 Å. There are three inequivalent Al sites. In the first Al site, Al is bonded to eight Ca and four Al atoms to form a mixture of distorted corner, edge, and face-sharing AlCa8Al4 cuboctahedra. There are two shorter (2.75 Å) and two longer (2.93 Å) Al–Al bond lengths. In the secondmore » Al site, Al is bonded in a 10-coordinate geometry to eight Ca and two equivalent Mg atoms. In the third Al site, Al is bonded in a 10-coordinate geometry to eight Ca and two equivalent Al atoms.« less

Publication Date:
Other Number(s):
mp-640340
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; Ca4MgAl3; Al-Ca-Mg
OSTI Identifier:
1279922
DOI:
https://doi.org/10.17188/1279922

Citation Formats

The Materials Project. Materials Data on Ca4MgAl3 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1279922.
The Materials Project. Materials Data on Ca4MgAl3 by Materials Project. United States. doi:https://doi.org/10.17188/1279922
The Materials Project. 2020. "Materials Data on Ca4MgAl3 by Materials Project". United States. doi:https://doi.org/10.17188/1279922. https://www.osti.gov/servlets/purl/1279922. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1279922,
title = {Materials Data on Ca4MgAl3 by Materials Project},
author = {The Materials Project},
abstractNote = {Ca4Al3Mg crystallizes in the orthorhombic Pbcm space group. The structure is three-dimensional. there are four inequivalent Ca sites. In the first Ca site, Ca is bonded in a 6-coordinate geometry to eight Al atoms. There are a spread of Ca–Al bond distances ranging from 3.22–3.63 Å. In the second Ca site, Ca is bonded in a 6-coordinate geometry to six Al atoms. There are a spread of Ca–Al bond distances ranging from 3.25–3.44 Å. In the third Ca site, Ca is bonded in a 2-coordinate geometry to six Al atoms. There are a spread of Ca–Al bond distances ranging from 3.17–3.50 Å. In the fourth Ca site, Ca is bonded in a 4-coordinate geometry to four Al atoms. There are a spread of Ca–Al bond distances ranging from 3.21–3.39 Å. Mg is bonded in a distorted linear geometry to two equivalent Al atoms. Both Mg–Al bond lengths are 2.82 Å. There are three inequivalent Al sites. In the first Al site, Al is bonded to eight Ca and four Al atoms to form a mixture of distorted corner, edge, and face-sharing AlCa8Al4 cuboctahedra. There are two shorter (2.75 Å) and two longer (2.93 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a 10-coordinate geometry to eight Ca and two equivalent Mg atoms. In the third Al site, Al is bonded in a 10-coordinate geometry to eight Ca and two equivalent Al atoms.},
doi = {10.17188/1279922},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}