Materials Data on Cs2TlCoF6 by Materials Project
Cs2CoTlF6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Cs1+ is bonded to twelve equivalent F1- atoms to form distorted CsF12 cuboctahedra that share corners with twelve equivalent CsF12 cuboctahedra, faces with six equivalent CsF12 cuboctahedra, faces with four equivalent CoF6 octahedra, and faces with four equivalent TlF6 octahedra. All Cs–F bond lengths are 3.27 Å. Co3+ is bonded to six equivalent F1- atoms to form CoF6 octahedra that share corners with six equivalent TlF6 octahedra and faces with eight equivalent CsF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Co–F bond lengths are 1.89 Å. Tl1+ is bonded to six equivalent F1- atoms to form TlF6 octahedra that share corners with six equivalent CoF6 octahedra and faces with eight equivalent CsF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Tl–F bond lengths are 2.70 Å. F1- is bonded in a 1-coordinate geometry to four equivalent Cs1+, one Co3+, and one Tl1+ atom.