DOI: 10.17188/1306494
title: Materials Data on Fe10O11F9 by Materials Project

description: Fe10O11F9 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 three O and three F atoms to form FeO3F3 octahedra that share corners with eight FeO3F3 octahedra and edges with two FeO4F2 octahedra. The corner-sharing octahedra tilt angles range from 45–54°. There are a spread of Fe–O bond distances ranging from 1.92–1.98 Å. There are a spread of Fe–F bond distances ranging from 2.05–2.15 Å. In the second Fe site, Fe is bonded to four O and two F atoms to form FeO4F2 octahedra that share corners with eight FeO4F2 octahedra and edges with two FeO3F3 octahedra. The corner-sharing octahedra tilt angles range from 47–54°. There are a spread of Fe–O bond distances ranging from 1.91–1.99 Å. There are one shorter (2.09 Å) and one longer (2.10 Å) Fe–F bond lengths. In the third Fe site, Fe is bonded to three O and three F atoms to form FeO3F3 octahedra that share corners with eight FeO3F3 octahedra and edges with two FeO4F2 octahedra. The corner-sharing octahedra tilt angles range from 42–55°. There is two shorter (1.93 Å) and one longer (1.96 Å) Fe–O bond length. There are a spread of Fe–F bond distances ranging from 2.09–2.15 Å. In the fourth Fe site, Fe is bonded to three O and three F atoms to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedra tilt angles range from 45–56°. There is one shorter (1.93 Å) and two longer (1.94 Å) Fe–O bond length. There are a spread of Fe–F bond distances ranging from 2.12–2.16 Å. In the fifth Fe site, Fe is bonded to three O and three F atoms to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedra tilt angles range from 45–57°. There is one shorter (1.93 Å) and two longer (1.94 Å) Fe–O bond length. There are one shorter (2.13 Å) and two longer (2.15 Å) Fe–F bond lengths. In the sixth 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 45–54°. There are a spread of Fe–O bond distances ranging from 1.96–1.99 Å. There are one shorter (2.14 Å) and one longer (2.22 Å) Fe–F bond lengths. In the seventh Fe site, Fe is bonded to three O and three F atoms to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedra tilt angles range from 46–53°. There is two shorter (1.95 Å) and one longer (1.96 Å) Fe–O bond length. There are a spread of Fe–F bond distances ranging from 2.06–2.18 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 42–55°. There are a spread of Fe–O bond distances ranging from 1.96–1.98 Å. There are one shorter (2.16 Å) and one longer (2.20 Å) Fe–F bond lengths. In the ninth Fe site, Fe is bonded to three O and three F atoms to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedra tilt angles range from 45–57°. There is two shorter (1.93 Å) and one longer (1.96 Å) Fe–O bond length. There are a spread of Fe–F bond distances ranging from 2.14–2.17 Å. In the tenth Fe site, Fe is bonded to three O and three F atoms to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedra tilt angles range from 45–55°. There are a spread of Fe–O bond distances ranging from 1.93–1.96 Å. There are a spread of Fe–F bond distances ranging from 2.06–2.22 Å. There are eleven 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 trigonal planar geometry to three Fe atoms. In the fifth O site, O is bonded in a distorted 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 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 distorted 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. There are nine 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. In the fifth F site, F is bonded in a distorted trigonal planar geometry to three Fe atoms. In the sixth F site, F is bonded in a distorted T-shaped geometry to three Fe atoms. In the seventh F site, F is bonded in a distorted trigonal planar geometry to three Fe atoms. In the eighth F site, F is bonded in a distorted trigonal planar geometry to three Fe atoms. In the ninth F site, F is bonded in a distorted T-shaped geometry to three Fe atoms.