Materials Data on Cr6Si7Ni16 by Materials Project
Cr6Ni16Si7 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Cr2+ is bonded in a 4-coordinate geometry to four equivalent Si4- atoms. All Cr–Si bond lengths are 2.85 Å. There are two inequivalent Ni1+ sites. In the first Ni1+ site, Ni1+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. All Ni–Si bond lengths are 2.26 Å. In the second Ni1+ site, Ni1+ is bonded to four Si4- atoms to form a mixture of corner and edge-sharing NiSi4 tetrahedra. There are one shorter (2.25 Å) and three longer (2.44 Å) Ni–Si bond lengths. There are two inequivalent Si4- sites. In the first Si4- site, Si4- is bonded in a body-centered cubic geometry to eight equivalent Ni1+ atoms. In the second Si4- site, Si4- is bonded to four equivalent Cr2+ and eight Ni1+ atoms to form a mixture of distorted corner and face-sharing SiCr4Ni8 cuboctahedra.
- 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:
- 1266326
- Report Number(s):
- mp-541940
- Country of Publication:
- United States
- Language:
- English
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