Materials Data on FeBi6P2(O7F)2 by Materials Project
FeBi6P2(O7F)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Fe2+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with four equivalent PO3F tetrahedra. There are a spread of Fe–O bond distances ranging from 1.97–2.52 Å. There are three inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.21–2.92 Å. In the second Bi3+ site, Bi3+ is bonded in a 8-coordinate geometry to seven O2- and one F1- atom. There are a spread of Bi–O bond distances ranging from 2.24–3.09 Å. The Bi–F bond length is 3.00 Å. In the third Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.24–2.90 Å. P5+ is bonded to three O2- and one F1- atom to form PO3F tetrahedra that share corners with two equivalent FeO6 octahedra. The corner-sharing octahedra tilt angles range from 18–54°. There are a spread of P–O bond distances ranging from 1.52–1.54 Å. The P–F bond length is 1.63 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Fe2+ and two Bi3+ atoms. In the second O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of distorted edge and corner-sharing OBi4 tetrahedra. In the third O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of distorted edge and corner-sharing OBi4 tetrahedra. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Fe2+, one Bi3+, and one P5+ atom. In the fifth O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of distorted edge and corner-sharing OBi4 tetrahedra. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Fe2+, two Bi3+, and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the eighth O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of distorted edge and corner-sharing OBi4 tetrahedra. F1- is bonded in a single-bond geometry to one Bi3+ and one P5+ atom.
- 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:
- 1754733
- Report Number(s):
- mp-1212910
- Country of Publication:
- United States
- Language:
- English
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