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Materials Data on TiCrAs2 by Materials Project

Dataset ·
DOI:https://doi.org/10.17188/1754376· OSTI ID:1754376
CrAsTiAs is Caswellsilverite-like structured and crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Ti4+ is bonded to six equivalent As3- atoms to form TiAs6 octahedra that share corners with twelve equivalent CrAs6 octahedra, edges with six equivalent TiAs6 octahedra, and faces with two equivalent CrAs6 octahedra. The corner-sharing octahedral tilt angles are 48°. All Ti–As bond lengths are 2.62 Å. Cr2+ is bonded to six equivalent As3- atoms to form CrAs6 octahedra that share corners with twelve equivalent TiAs6 octahedra, edges with six equivalent CrAs6 octahedra, and faces with two equivalent TiAs6 octahedra. The corner-sharing octahedral tilt angles are 48°. All Cr–As bond lengths are 2.52 Å. As3- is bonded to three equivalent Ti4+ and three equivalent Cr2+ atoms to form a mixture of distorted edge and corner-sharing AsTi3Cr3 pentagonal pyramids.
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:
1754376
Report Number(s):
mp-1216963
Country of Publication:
United States
Language:
English

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