Materials Data on HfTaC2 by Materials Project
HfTaC2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Hf4+ is bonded to six equivalent C4- atoms to form HfC6 octahedra that share corners with six equivalent TaC6 octahedra, edges with six equivalent HfC6 octahedra, and edges with six equivalent TaC6 octahedra. The corner-sharing octahedral tilt angles are 2°. All Hf–C bond lengths are 2.31 Å. Ta4+ is bonded to six equivalent C4- atoms to form TaC6 octahedra that share corners with six equivalent HfC6 octahedra, edges with six equivalent HfC6 octahedra, and edges with six equivalent TaC6 octahedra. The corner-sharing octahedral tilt angles are 2°. All Ta–C bond lengths are 2.25 Å. C4- is bonded to three equivalent Hf4+ and three equivalent Ta4+ atoms to form a mixture of corner and edge-sharing CHf3Ta3 octahedra. The corner-sharing octahedral tilt angles are 0°.
- 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:
- 1706799
- Report Number(s):
- mp-1224285
- Country of Publication:
- United States
- Language:
- English
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