Materials Data on RbSbF6 by Materials Project

Abstract

RbSbF6 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Rb1+ is bonded to twelve equivalent F1- atoms to form RbF12 cuboctahedra that share corners with six equivalent SbF6 octahedra, edges with six equivalent RbF12 cuboctahedra, and faces with two equivalent SbF6 octahedra. The corner-sharing octahedral tilt angles are 37°. There are six shorter (3.05 Å) and six longer (3.26 Å) Rb–F bond lengths. Sb5+ is bonded to six equivalent F1- atoms to form SbF6 octahedra that share corners with six equivalent RbF12 cuboctahedra and faces with two equivalent RbF12 cuboctahedra. All Sb–F bond lengths are 1.92 Å. F1- is bonded in a distorted single-bond geometry to two equivalent Rb1+ and one Sb5+ atom.