Materials Data on La(FeAs3)4 by Materials Project
LaFe4As12 crystallizes in the cubic Im-3 space group. The structure is three-dimensional. La3+ is bonded to twelve equivalent As+1.25- atoms to form LaAs12 cuboctahedra that share faces with eight equivalent FeAs6 octahedra. All La–As bond lengths are 3.16 Å. Fe3+ is bonded to six equivalent As+1.25- atoms to form FeAs6 octahedra that share corners with six equivalent FeAs6 octahedra and faces with two equivalent LaAs12 cuboctahedra. The corner-sharing octahedral tilt angles are 56°. All Fe–As bond lengths are 2.37 Å. As+1.25- is bonded in a 2-coordinate geometry to one La3+, two equivalent Fe3+, and two equivalent As+1.25- atoms. There are one shorter (2.61 Å) and one longer (2.62 Å) As–As bond lengths.
- 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:
- 1198374
- Report Number(s):
- mp-22470
- Country of Publication:
- United States
- Language:
- English
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