Materials Data on KPF6 by Materials Project
KPF6 crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. K1+ is bonded to twelve equivalent F1- atoms to form KF12 cuboctahedra that share corners with twelve equivalent KF12 cuboctahedra and edges with six equivalent PF6 octahedra. There are six shorter (2.89 Å) and six longer (3.26 Å) K–F bond lengths. P5+ is bonded to six equivalent F1- atoms to form PF6 octahedra that share edges with six equivalent KF12 cuboctahedra. All P–F bond lengths are 1.64 Å. F1- is bonded in a single-bond geometry to two equivalent K1+ and one P5+ atom.