Materials Data on KRuF6 by Materials Project
KRuF6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. K1+ is bonded to twelve equivalent F1- atoms to form KF12 cuboctahedra that share corners with six equivalent RuF6 octahedra, edges with six equivalent KF12 cuboctahedra, and faces with two equivalent RuF6 octahedra. The corner-sharing octahedral tilt angles are 34°. There are six shorter (2.93 Å) and six longer (3.07 Å) K–F bond lengths. Ru5+ is bonded to six equivalent F1- atoms to form RuF6 octahedra that share corners with six equivalent KF12 cuboctahedra and faces with two equivalent KF12 cuboctahedra. All Ru–F bond lengths are 1.90 Å. F1- is bonded in a distorted single-bond geometry to two equivalent K1+ and one Ru5+ atom.
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