Materials Data on Fe5(O4F)2 by Materials Project

Abstract

Fe5(O4F)2 is Hydrophilite-derived structured and crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are five inequivalent Fe sites. In the first Fe site, Fe is bonded to five O and one F atom to form a mixture of corner and edge-sharing FeO5F octahedra. The corner-sharing octahedra tilt angles range from 44–53°. There are a spread of Fe–O bond distances ranging from 1.89–2.01 Å. The Fe–F bond length is 2.16 Å. In the second Fe site, Fe is bonded to five O and one F atom to form a mixture of corner and edge-sharing FeO5F octahedra. The corner-sharing octahedra tilt angles range from 47–54°. There are a spread of Fe–O bond distances ranging from 1.96–2.03 Å. The Fe–F bond length is 2.10 Å. In the third Fe site, Fe is bonded to five O and one F atom to form a mixture of corner and edge-sharing FeO5F octahedra. The corner-sharing octahedra tilt angles range from 46–57°. There are a spread of Fe–O bond distances ranging from 1.95–2.01 Å. The Fe–F bond length is 2.06 Å. In the fourth Fe site, Fe is bonded to five O and one F atom to form a mixture of corner and edge-sharing FeO5F octahedra. The corner-sharing octahedra tilt angles range from 44–57°. There are a spread of Fe–O bond distances ranging from 1.92–1.99 Å. The Fe–F bond length is 2.15 Å. In the fifth Fe site, Fe is bonded to four O and two F atoms to form a mixture of corner and edge-sharing FeO4F2 octahedra. The corner-sharing octahedra tilt angles range from 45–56°. There are a spread of Fe–O bond distances ranging from 1.93–2.01 Å. Both Fe–F bond lengths are 2.09 Å. There are eight inequivalent O sites. In the first O site, O is bonded in a distorted trigonal planar geometry to three Fe atoms. In the second O site, O is bonded in a distorted trigonal planar geometry to three Fe atoms. In the third O site, O is bonded in a trigonal planar geometry to three Fe atoms. In the fourth O site, O is bonded in a trigonal planar geometry to three Fe atoms. In the fifth O site, O is bonded in a trigonal planar geometry to three Fe atoms. In the sixth O site, O is bonded in a distorted trigonal planar geometry to three Fe atoms. In the seventh O site, O is bonded in a trigonal planar geometry to three Fe atoms. In the eighth O site, O is bonded in a distorted trigonal planar geometry to three Fe atoms. There are two inequivalent F sites. In the first F site, F is bonded in a distorted trigonal planar geometry to three Fe atoms. In the second F site, F is bonded in a distorted trigonal planar geometry to three Fe atoms.