K2LiAsF6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. K(1) is bonded to twelve equivalent F(1) atoms to form KF12 cuboctahedra that share corners with twelve equivalent K(1)F12 cuboctahedra, faces with six equivalent K(1)F12 cuboctahedra, faces with four equivalent Li(1)F6 octahedra, and faces with four equivalent As(1)F6 octahedra. Li(1) is bonded to six equivalent F(1) atoms to form LiF6 octahedra that share corners with six equivalent As(1)F6 octahedra and faces with eight equivalent K(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. As(1) is bonded to six equivalent F(1) atoms to form AsF6 octahedra that share corners with six equivalent Li(1)F6 octahedra and faces with eight equivalent K(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. F(1) is bonded in a distorted linear geometry to four equivalent K(1), one Li(1), and one As(1) atom.
K2LiAsF6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. K(1) is bonded to twelve equivalent F(1) atoms to form KF12 cuboctahedra that share corners with twelve equivalent K(1)F12 cuboctahedra, faces with six equivalent K(1)F12 cuboctahedra, faces with four equivalent Li(1)F6 octahedra, and faces with four equivalent As(1)F6 octahedra. All K(1)-F(1) bond lengths are 2.95 Å. Li(1) is bonded to six equivalent F(1) atoms to form LiF6 octahedra that share corners with six equivalent As(1)F6 octahedra and faces with eight equivalent K(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. All Li(1)-F(1) bond lengths are 2.10 Å. As(1) is bonded to six equivalent F(1) atoms to form AsF6 octahedra that share corners with six equivalent Li(1)F6 octahedra and faces with eight equivalent K(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. All As(1)-F(1) bond lengths are 2.07 Å. F(1) is bonded in a distorted linear geometry to four equivalent K(1), one Li(1), and one As(1) atom.