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DOE OSTI · 1307291

Materials Data on Fe4O7F by Materials Project

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Abstract

Fe4O7F is Hydrophilite-derived structured and crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are four 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 47–54°. There are a spread of Fe–O bond distances ranging from 1.94–1.97 Å. The Fe–F bond length is 2.08 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 equivalent FeO6 octahedra. The corner-sharing octahedra tilt angles range from 48–52°. There are a spread of Fe–O bond distances ranging from 1.93–1.98 Å. The Fe–F bond length is 2.12 Å. In the third Fe site, Fe is bonded to six O atoms to form a mixture of corner and edge-sharing FeO6 octahedra. The corner-sharing octahedra tilt angles range from 48–52°. There are a spread of Fe–O bond distances ranging from 1.94–2.09 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 47–54°. There are a spread of Fe–O bond distances ranging from 1.94–2.02 Å. The Fe–F bond length is 2.05 Å. There are seven 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 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 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. F is bonded in a distorted trigonal planar geometry to three Fe atoms.

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36 MATERIALS SCIENCEcrystal structureF-Fe-OFe4O7F

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2020-08-03. Materials Data on Fe4O7F by Materials Project. https://doi.org/10.17188/1307291

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36 MATERIALS SCIENCE↗