Materials Data on Rb2HgIrF6 by Materials Project

Abstract

Rb2IrHgF6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Rb1+ is bonded to twelve equivalent F1- atoms to form distorted RbF12 cuboctahedra that share corners with twelve equivalent RbF12 cuboctahedra, faces with six equivalent RbF12 cuboctahedra, faces with four equivalent IrF6 octahedra, and faces with four equivalent HgF6 octahedra. All Rb–F bond lengths are 3.46 Å. Ir3+ is bonded to six equivalent F1- atoms to form IrF6 octahedra that share corners with six equivalent HgF6 octahedra and faces with eight equivalent RbF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ir–F bond lengths are 1.97 Å. Hg1+ is bonded to six equivalent F1- atoms to form HgF6 octahedra that share corners with six equivalent IrF6 octahedra and faces with eight equivalent RbF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Hg–F bond lengths are 2.88 Å. F1- is bonded in a distorted single-bond geometry to four equivalent Rb1+, one Ir3+, and one Hg1+ atom.