Materials Data on CsPr(NbBr3)6 by Materials Project
CsPr(NbBr3)6 crystallizes in the trigonal P-31c space group. The structure is three-dimensional. Cs1+ is bonded in a 12-coordinate geometry to twelve Br1- atoms. There are six shorter (4.08 Å) and six longer (4.21 Å) Cs–Br bond lengths. Pr3+ is bonded to six equivalent Br1- atoms to form PrBr6 octahedra that share corners with six equivalent NbBr5 square pyramids. All Pr–Br bond lengths are 2.95 Å. Nb+2.33+ is bonded to five Br1- atoms to form distorted NbBr5 square pyramids that share a cornercorner with one PrBr6 octahedra and corners with four equivalent NbBr5 square pyramids. The corner-sharing octahedral tilt angles are 46°. There are a spread of Nb–Br bond distances ranging from 2.61–2.96 Å. There are three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 2-coordinate geometry to two equivalent Nb+2.33+ atoms. In the second Br1- site, Br1- is bonded in a 2-coordinate geometry to one Cs1+, one Pr3+, and one Nb+2.33+ atom. In the third Br1- site, Br1- is bonded in a 2-coordinate geometry to one Cs1+ and two equivalent Nb+2.33+ 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:
- 1736494
- Report Number(s):
- mp-1213382
- Country of Publication:
- United States
- Language:
- English
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