Materials Data on V2OF6 by Materials Project

Abstract

V2OF6 crystallizes in the orthorhombic Ima2 space group. The structure is three-dimensional. there are two inequivalent V4+ sites. In the first V4+ site, V4+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedral tilt angles are 38°. There is four shorter (1.97 Å) and two longer (1.98 Å) V–F bond length. In the second V4+ site, V4+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 38–40°. There is two shorter (1.97 Å) and four longer (1.98 Å) V–F bond length. O2- is bonded in a 3-coordinate geometry to three F1- atoms. There are one shorter (3.10 Å) and two longer (3.14 Å) O–F bond lengths. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V4+ and one O2- atom. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two V4+ atoms. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent V4+ atoms. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent V4+ and one O2- atom.