Rb2HgGaCl6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent Cl(1) atoms to form RbCl12 cuboctahedra that share corners with twelve equivalent Rb(1)Cl12 cuboctahedra, faces with six equivalent Rb(1)Cl12 cuboctahedra, faces with four equivalent Hg(1)Cl6 octahedra, and faces with four equivalent Ga(1)Cl6 octahedra. Hg(1) is bonded to six equivalent Cl(1) atoms to form HgCl6 octahedra that share corners with six equivalent Ga(1)Cl6 octahedra and faces with eight equivalent Rb(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Ga(1) is bonded to six equivalent Cl(1) atoms to form GaCl6 octahedra that share corners with six equivalent Hg(1)Cl6 octahedra and faces with eight equivalent Rb(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded to four equivalent Rb(1), one Hg(1), and one Ga(1) atom to form a mixture of distorted face, corner, and edge-sharing ClRb4GaHg octahedra. The corner-sharing octahedral tilt angles range from 0-60°.
Rb2HgGaCl6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent Cl(1) atoms to form RbCl12 cuboctahedra that share corners with twelve equivalent Rb(1)Cl12 cuboctahedra, faces with six equivalent Rb(1)Cl12 cuboctahedra, faces with four equivalent Hg(1)Cl6 octahedra, and faces with four equivalent Ga(1)Cl6 octahedra. All Rb(1)-Cl(1) bond lengths are 3.73 Å. Hg(1) is bonded to six equivalent Cl(1) atoms to form HgCl6 octahedra that share corners with six equivalent Ga(1)Cl6 octahedra and faces with eight equivalent Rb(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. All Hg(1)-Cl(1) bond lengths are 2.84 Å. Ga(1) is bonded to six equivalent Cl(1) atoms to form GaCl6 octahedra that share corners with six equivalent Hg(1)Cl6 octahedra and faces with eight equivalent Rb(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. All Ga(1)-Cl(1) bond lengths are 2.43 Å. Cl(1) is bonded to four equivalent Rb(1), one Hg(1), and one Ga(1) atom to form a mixture of distorted face, corner, and edge-sharing ClRb4GaHg octahedra. The corner-sharing octahedral tilt angles range from 0-60°.