Materials Data on FeO2 by Materials Project

Abstract

FeO2 is Rutile-like structured and crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are eight 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 octahedral tilt angles are 50°. There are a spread of Fe–O bond distances ranging from 1.94–2.05 Å. In the second Fe site, Fe is bonded to six O atoms to form a mixture of edge and corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Fe–O bond distances ranging from 1.93–2.00 Å. In the third Fe site, Fe is bonded to six O atoms to form a mixture of edge and corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Fe–O bond distances ranging from 1.94–1.97 Å. In the fourth 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 49–50°. There are a spread of Fe–O bond distances ranging from 1.95–2.07 Å. In the fifth 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 49–51°. There are a spread of Fe–O bond distances ranging from 1.90–1.95 Å. In the sixth Fe site, Fe is bonded to six O atoms to form a mixture of edge and corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Fe–O bond distances ranging from 1.95–1.99 Å. In the seventh Fe site, Fe is bonded to six O atoms to form a mixture of edge and corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Fe–O bond distances ranging from 1.94–2.05 Å. In the eighth 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 50–51°. There are a spread of Fe–O bond distances ranging from 1.94–2.15 Å. There are sixteen inequivalent O sites. In the first O site, O is bonded in a distorted trigonal non-coplanar 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 non-coplanar 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 non-coplanar 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 non-coplanar 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 distorted trigonal non-coplanar geometry to three Fe atoms. In the tenth O site, O is bonded in a distorted trigonal planar geometry to three Fe atoms. In the eleventh O site, O is bonded in a distorted trigonal non-coplanar 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 non-coplanar 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 distorted trigonal non-coplanar geometry to three Fe atoms. In the sixteenth O site, O is bonded in a trigonal planar geometry to three Fe atoms.