Materials Data on CrHgF6 by Materials Project
CrHgF6 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Cr4+ is bonded to six equivalent F1- atoms to form CrF6 octahedra that share corners with six equivalent HgF6 octahedra. The corner-sharing octahedral tilt angles are 44°. All Cr–F bond lengths are 1.86 Å. Hg2+ is bonded to six equivalent F1- atoms to form HgF6 octahedra that share corners with six equivalent CrF6 octahedra. The corner-sharing octahedral tilt angles are 44°. All Hg–F bond lengths are 2.34 Å. F1- is bonded in a 2-coordinate geometry to one Cr4+ and one Hg2+ atom.
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