Rb2InGaI6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent I(1) atoms to form RbI12 cuboctahedra that share corners with twelve equivalent Rb(1)I12 cuboctahedra, faces with six equivalent Rb(1)I12 cuboctahedra, faces with four equivalent In(1)I6 octahedra, and faces with four equivalent Ga(1)I6 octahedra. In(1) is bonded to six equivalent I(1) atoms to form InI6 octahedra that share corners with six equivalent Ga(1)I6 octahedra and faces with eight equivalent Rb(1)I12 cuboctahedra. The corner-sharing octahedra are not tilted. Ga(1) is bonded to six equivalent I(1) atoms to form GaI6 octahedra that share corners with six equivalent In(1)I6 octahedra and faces with eight equivalent Rb(1)I12 cuboctahedra. The corner-sharing octahedra are not tilted. I(1) is bonded in a linear geometry to four equivalent Rb(1), one In(1), and one Ga(1) atom.
Rb2InGaI6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent I(1) atoms to form RbI12 cuboctahedra that share corners with twelve equivalent Rb(1)I12 cuboctahedra, faces with six equivalent Rb(1)I12 cuboctahedra, faces with four equivalent In(1)I6 octahedra, and faces with four equivalent Ga(1)I6 octahedra. All Rb(1)-I(1) bond lengths are 4.30 Å. In(1) is bonded to six equivalent I(1) atoms to form InI6 octahedra that share corners with six equivalent Ga(1)I6 octahedra and faces with eight equivalent Rb(1)I12 cuboctahedra. The corner-sharing octahedra are not tilted. All In(1)-I(1) bond lengths are 2.97 Å. Ga(1) is bonded to six equivalent I(1) atoms to form GaI6 octahedra that share corners with six equivalent In(1)I6 octahedra and faces with eight equivalent Rb(1)I12 cuboctahedra. The corner-sharing octahedra are not tilted. All Ga(1)-I(1) bond lengths are 3.11 Å. I(1) is bonded in a linear geometry to four equivalent Rb(1), one In(1), and one Ga(1) atom.