KHgF3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-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, and faces with eight equivalent Hg(1)F6 octahedra. Hg(1) is bonded to six equivalent F(1) atoms to form HgF6 octahedra that share corners with six equivalent Hg(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) and two equivalent Hg(1) atoms.
KHgF3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-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, and faces with eight equivalent Hg(1)F6 octahedra. All K(1)-F(1) bond lengths are 3.20 Å. Hg(1) is bonded to six equivalent F(1) atoms to form HgF6 octahedra that share corners with six equivalent Hg(1)F6 octahedra and faces with eight equivalent K(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. All Hg(1)-F(1) bond lengths are 2.26 Å. F(1) is bonded in a distorted linear geometry to four equivalent K(1) and two equivalent Hg(1) atoms.