Materials Data on CrF5 by Materials Project

Abstract

CrF5 crystallizes in the orthorhombic Pbcm space group. The structure is one-dimensional and consists of two CrF5 ribbons oriented in the (1, 0, 0) direction. Cr5+ is bonded to six F1- atoms to form corner-sharing CrF6 octahedra. The corner-sharing octahedral tilt angles are 37°. There are a spread of Cr–F bond distances ranging from 1.73–1.98 Å. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Cr5+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Cr5+ atom. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent Cr5+ atoms. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Cr5+ atom.