Materials Data on LiCaAs by Materials Project
LiCaAs crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Li1+ is bonded to four equivalent As3- atoms to form LiAs4 tetrahedra that share corners with eight equivalent CaAs5 square pyramids, corners with eight equivalent LiAs4 tetrahedra, edges with six equivalent CaAs5 square pyramids, and edges with two equivalent LiAs4 tetrahedra. There are a spread of Li–As bond distances ranging from 2.63–2.77 Å. Ca2+ is bonded to five equivalent As3- atoms to form distorted CaAs5 square pyramids that share corners with eight equivalent CaAs5 square pyramids, corners with eight equivalent LiAs4 tetrahedra, edges with six equivalent CaAs5 square pyramids, and edges with six equivalent LiAs4 tetrahedra. There are a spread of Ca–As bond distances ranging from 3.01–3.11 Å. As3- is bonded in a 9-coordinate geometry to four equivalent Li1+ and five equivalent Ca2+ 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:
- 1728819
- Report Number(s):
- mp-1095289
- Country of Publication:
- United States
- Language:
- English
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