DOI: 10.17188/1303142
title: Materials Data on Fe5(O4F)2 by Materials Project

description: Fe5(O4F)2 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are ten inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form a mixture of edge and corner-sharing FeO6 octahedra. The corner-sharing octahedra tilt angles range from 47–52°. There are a spread of Fe–O bond distances ranging from 1.92–2.12 Å. In the second Fe site, Fe is bonded to five O and one F atom to form FeO5F octahedra that share corners with eight FeO5F octahedra and edges with two FeO4F2 octahedra. The corner-sharing octahedra tilt angles range from 43–54°. There are a spread of Fe–O bond distances ranging from 1.95–2.06 Å. The Fe–F bond length is 2.06 Å. In the third Fe site, Fe is bonded to five O and one F atom to form FeO5F octahedra that share corners with eight FeO5F octahedra and edges with two FeO6 octahedra. The corner-sharing octahedra tilt angles range from 48–52°. There are a spread of Fe–O bond distances ranging from 1.93–1.97 Å. The Fe–F bond length is 2.16 Å. In the fourth Fe site, Fe is bonded to four O and two F atoms to form FeO4F2 octahedra that share corners with eight FeO5F octahedra and edges with two FeO6 octahedra. The corner-sharing octahedra tilt angles range from 48–54°. There are a spread of Fe–O bond distances ranging from 1.92–1.99 Å. There are one shorter (2.03 Å) and one longer (2.09 Å) Fe–F bond lengths. In the fifth Fe site, Fe is bonded to five O and one F atom to form a mixture of edge and corner-sharing FeO5F octahedra. The corner-sharing octahedra tilt angles range from 46–54°. There are a spread of Fe–O bond distances ranging from 1.95–1.99 Å. The Fe–F bond length is 2.18 Å. In the sixth Fe site, Fe is bonded to five O and one F atom to form FeO5F octahedra that share corners with eight FeO6 octahedra and edges with two FeO5F octahedra. The corner-sharing octahedra tilt angles range from 46–54°. There are a spread of Fe–O bond distances ranging from 1.90–1.99 Å. The Fe–F bond length is 2.01 Å. In the seventh Fe site, Fe is bonded to four O and two F atoms to form FeO4F2 octahedra that share corners with eight FeO6 octahedra and edges with two FeO5F octahedra. The corner-sharing octahedra tilt angles range from 47–52°. There are a spread of Fe–O bond distances ranging from 1.93–1.97 Å. Both Fe–F bond lengths are 2.04 Å. In the eighth Fe site, Fe is bonded to four O and two F atoms to form a mixture of edge and corner-sharing FeO4F2 octahedra. The corner-sharing octahedra tilt angles range from 48–53°. There are a spread of Fe–O bond distances ranging from 1.94–1.98 Å. There are one shorter (2.04 Å) and one longer (2.05 Å) Fe–F bond lengths. In the ninth Fe site, Fe is bonded to five O and one F atom to form FeO5F octahedra that share corners with eight FeO6 octahedra and edges with two FeO5F octahedra. The corner-sharing octahedra tilt angles range from 47–54°. There are a spread of Fe–O bond distances ranging from 1.94–2.01 Å. The Fe–F bond length is 2.15 Å. In the tenth Fe site, Fe is bonded to five O and one F atom to form FeO5F octahedra that share corners with eight FeO6 octahedra and edges with two FeO5F octahedra. The corner-sharing octahedra tilt angles range from 43–52°. There are a spread of Fe–O bond distances ranging from 1.90–1.98 Å. The Fe–F bond length is 2.13 Å. There are sixteen inequivalent O sites. In the first O site, O is bonded in a 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 trigonal planar geometry to three Fe atoms. In the fourth O site, O is bonded in a distorted 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 trigonal planar geometry to three Fe atoms. In the seventh O site, O is bonded in a distorted trigonal planar geometry to three Fe atoms. In the eighth O site, O is bonded in a trigonal planar geometry to three Fe atoms. In the ninth O site, O is bonded in a trigonal planar geometry to three Fe atoms. In the tenth O site, O is bonded in a trigonal planar geometry to three Fe atoms. In the eleventh O site, O is bonded in a trigonal planar geometry to three Fe atoms. In the twelfth O site, O is bonded in a distorted trigonal planar geometry to three Fe atoms. In the thirteenth O site, O is bonded in a distorted trigonal planar geometry to three Fe atoms. In the fourteenth O site, O is bonded in a trigonal planar geometry to three Fe atoms. In the fifteenth O site, O is bonded in a trigonal planar geometry to three Fe atoms. In the sixteenth O site, O is bonded in a distorted trigonal planar geometry to three Fe atoms. There are four 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. In the third F site, F is bonded in a distorted trigonal planar geometry to three Fe atoms. In the fourth F site, F is bonded in a distorted trigonal planar geometry to three Fe atoms.