Materials Data on Ca(Al10Cr)2 by Materials Project
Ca(CrAl10)2 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Ca is bonded in a 4-coordinate geometry to sixteen Al atoms. There are four shorter (3.13 Å) and twelve longer (3.20 Å) Ca–Al bond lengths. Cr is bonded to twelve Al atoms to form CrAl12 cuboctahedra that share corners with six equivalent CrAl12 cuboctahedra, edges with eighteen equivalent AlCaAl10Cr cuboctahedra, and faces with six equivalent AlCaAl10Cr cuboctahedra. There are six shorter (2.56 Å) and six longer (2.79 Å) Cr–Al bond lengths. There are three inequivalent Al sites. In the first Al site, Al is bonded in a 12-coordinate geometry to two equivalent Cr and ten Al atoms. There are a spread of Al–Al bond distances ranging from 2.70–2.83 Å. In the second Al site, Al is bonded in a linear geometry to two equivalent Ca and twelve equivalent Al atoms. All Al–Al bond lengths are 3.09 Å. In the third Al site, Al is bonded to one Ca, one Cr, and ten Al atoms to form distorted AlCaAl10Cr cuboctahedra that share corners with fifteen equivalent AlCaAl10Cr cuboctahedra, edges with two equivalent AlCaAl10Cr cuboctahedra, edges with three equivalent CrAl12 cuboctahedra, a faceface with one CrAl12 cuboctahedra, and faces with fifteen equivalent AlCaAl10Cr cuboctahedra. There are a spread of Al–Al bond distances ranging from 2.70–2.90 Å.
- 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:
- 1718391
- Report Number(s):
- mp-1196837
- Country of Publication:
- United States
- Language:
- English
Similar Records
Materials Data on Er(Al10Cr)2 by Materials Project
Materials Data on U(Al10Cr)2 by Materials Project
Materials Data on La(Al10Cr)2 by Materials Project
Dataset
·
Wed Jul 15 00:00:00 EDT 2020
·
OSTI ID:1283691
Materials Data on U(Al10Cr)2 by Materials Project
Dataset
·
Fri Jun 05 00:00:00 EDT 2020
·
OSTI ID:1699359
Materials Data on La(Al10Cr)2 by Materials Project
Dataset
·
Wed Apr 29 00:00:00 EDT 2020
·
OSTI ID:1691349