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Materials Data on Mg6AlC by Materials Project

Dataset ·
DOI:https://doi.org/10.17188/1654446· OSTI ID:1654446
Mg6AlC crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are four inequivalent Mg sites. In the first Mg site, Mg is bonded in a 12-coordinate geometry to eight Mg, two equivalent Al, and two equivalent C atoms. There are a spread of Mg–Mg bond distances ranging from 2.83–3.08 Å. There are one shorter (2.88 Å) and one longer (3.08 Å) Mg–Al bond lengths. Both Mg–C bond lengths are 2.97 Å. In the second Mg site, Mg is bonded to ten Mg and two equivalent Al atoms to form a mixture of distorted corner and face-sharing MgMg10Al2 cuboctahedra. There are four shorter (3.02 Å) and two longer (3.03 Å) Mg–Mg bond lengths. Both Mg–Al bond lengths are 2.95 Å. In the third Mg site, Mg is bonded in a 2-coordinate geometry to four Mg and two equivalent Al atoms. Both Mg–Al bond lengths are 3.01 Å. In the fourth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg atoms. Al is bonded in a distorted q6 geometry to ten Mg atoms. C is bonded in a 10-coordinate geometry to four equivalent Mg atoms.
Research Organization:
LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Contributing Organization:
The Materials Project; MIT; UC Berkeley; Duke; U Louvain
DOE Contract Number:
AC02-05CH11231
OSTI ID:
1654446
Report Number(s):
mp-1023276
Country of Publication:
United States
Language:
English

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