Rb2AgBiI6 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 Ag(1)I6 octahedra, and faces with four equivalent Bi(1)I6 octahedra. Ag(1) is bonded to six equivalent I(1) atoms to form AgI6 octahedra that share corners with six equivalent Bi(1)I6 octahedra and faces with eight equivalent Rb(1)I12 cuboctahedra. The corner-sharing octahedra are not tilted. Bi(1) is bonded to six equivalent I(1) atoms to form BiI6 octahedra that share corners with six equivalent Ag(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 Ag(1), and one Bi(1) atom.
Rb2AgBiI6 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 Ag(1)I6 octahedra, and faces with four equivalent Bi(1)I6 octahedra. All Rb(1)-I(1) bond lengths are 4.31 Å. Ag(1) is bonded to six equivalent I(1) atoms to form AgI6 octahedra that share corners with six equivalent Bi(1)I6 octahedra and faces with eight equivalent Rb(1)I12 cuboctahedra. The corner-sharing octahedra are not tilted. All Ag(1)-I(1) bond lengths are 3.01 Å. Bi(1) is bonded to six equivalent I(1) atoms to form BiI6 octahedra that share corners with six equivalent Ag(1)I6 octahedra and faces with eight equivalent Rb(1)I12 cuboctahedra. The corner-sharing octahedra are not tilted. All Bi(1)-I(1) bond lengths are 3.09 Å. I(1) is bonded in a linear geometry to four equivalent Rb(1), one Ag(1), and one Bi(1) atom.