Materials Data on Tl2CrF6 by Materials Project
CrTl2F6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Cr4+ is bonded to six equivalent F1- atoms to form CrF6 octahedra that share faces with eight equivalent TlF12 cuboctahedra. All Cr–F bond lengths are 1.90 Å. Tl1+ is bonded to twelve equivalent F1- atoms to form TlF12 cuboctahedra that share corners with twelve equivalent TlF12 cuboctahedra, faces with six equivalent TlF12 cuboctahedra, and faces with four equivalent CrF6 octahedra. All Tl–F bond lengths are 2.99 Å. F1- is bonded in a single-bond geometry to one Cr4+ and four equivalent Tl1+ atoms.
36 MATERIALS SCIENCE↗