Materials Data on V2F9 by Materials Project

Abstract

V2F9 crystallizes in the trigonal P3c1 space group. The structure is zero-dimensional and consists of two V2F9 clusters. there are two inequivalent V+4.50+ sites. In the first V+4.50+ site, V+4.50+ is bonded in a 6-coordinate geometry to six F1- atoms. There is three shorter (1.76 Å) and three longer (2.11 Å) V–F bond length. In the second V+4.50+ site, V+4.50+ is bonded in an octahedral geometry to six F1- atoms. There is three shorter (1.74 Å) and three longer (1.93 Å) V–F bond length. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one V+4.50+ atom. In the second F1- site, F1- is bonded in an L-shaped geometry to two V+4.50+ atoms. In the third F1- site, F1- is bonded in a single-bond geometry to one V+4.50+ atom.