KAsF6 crystallizes in the trigonal R-3 space group. K(1) is bonded to twelve equivalent F(1) atoms to form KF12 cuboctahedra that share corners with six equivalent As(1)F6 octahedra, edges with six equivalent K(1)F12 cuboctahedra, and faces with two equivalent As(1)F6 octahedra. The corner-sharing octahedral tilt angles are 34°. As(1) is bonded to six equivalent F(1) atoms to form AsF6 octahedra that share corners with six equivalent K(1)F12 cuboctahedra and faces with two equivalent K(1)F12 cuboctahedra. F(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one As(1) atom.
KAsF6 crystallizes in the trigonal R-3 space group. K(1) is bonded to twelve equivalent F(1) atoms to form KF12 cuboctahedra that share corners with six equivalent As(1)F6 octahedra, edges with six equivalent K(1)F12 cuboctahedra, and faces with two equivalent As(1)F6 octahedra. The corner-sharing octahedral tilt angles are 34°. There are six shorter (2.83 Å) and six longer (2.91 Å) K(1)-F(1) bond lengths. As(1) is bonded to six equivalent F(1) atoms to form AsF6 octahedra that share corners with six equivalent K(1)F12 cuboctahedra and faces with two equivalent K(1)F12 cuboctahedra. All As(1)-F(1) bond lengths are 1.75 Å. F(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one As(1) atom.