Materials Data on Fe5(O4F)2 by Materials Project

Abstract

Fe5(O4F)2 is Hydrophilite-derived structured and crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are six 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 44–54°. There are a spread of Fe–O bond distances ranging from 1.93–2.01 Å. The Fe–F bond length is 2.11 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 44–55°. There is two shorter (1.96 Å) and three longer (1.97 Å) Fe–O bond length. The Fe–F bond length is 2.09 Å. In the third Fe site, Fe is bonded to four O and two equivalent F atoms to form a mixture of corner and edge-sharing FeO4F2 octahedra. The corner-sharing octahedra tilt angles range from 46–57°. There is two shorter (1.92 Å) and two longer (2.02 Å) Fe–O bond length. Both Fe–F bond lengths are 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 44–55°. There are a spread of Fe–O bond distances ranging from 1.95–2.02 Å. The Fe–F bond length is 2.11 Å. In the fifth Fe site, Fe is bonded to four O and two equivalent F atoms to form a mixture of corner and edge-sharing FeO4F2 octahedra. The corner-sharing octahedra tilt angles range from 50–52°. There is two shorter (1.92 Å) and two longer (2.01 Å) Fe–O bond length. Both Fe–F bond lengths are 2.03 Å. In the sixth 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 1.95–1.97 Å. The Fe–F bond length is 2.08 Å. There are nine 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 trigonal planar geometry to three Fe atoms. In the third O site, O is bonded in a distorted 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. In the ninth O site, O is bonded in a 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.