Rb2AuTlBr6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent Br(1) atoms to form RbBr12 cuboctahedra that share corners with twelve equivalent Rb(1)Br12 cuboctahedra, faces with six equivalent Rb(1)Br12 cuboctahedra, faces with four equivalent Au(1)Br6 octahedra, and faces with four equivalent Tl(1)Br6 octahedra. Au(1) is bonded to six equivalent Br(1) atoms to form AuBr6 octahedra that share corners with six equivalent Tl(1)Br6 octahedra and faces with eight equivalent Rb(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. Tl(1) is bonded to six equivalent Br(1) atoms to form TlBr6 octahedra that share corners with six equivalent Au(1)Br6 octahedra and faces with eight equivalent Rb(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. Br(1) is bonded to four equivalent Rb(1), one Au(1), and one Tl(1) atom to form a mixture of distorted face, corner, and edge-sharing BrRb4TlAu octahedra. The corner-sharing octahedral tilt angles range from 0-60°.
Rb2AuTlBr6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent Br(1) atoms to form RbBr12 cuboctahedra that share corners with twelve equivalent Rb(1)Br12 cuboctahedra, faces with six equivalent Rb(1)Br12 cuboctahedra, faces with four equivalent Au(1)Br6 octahedra, and faces with four equivalent Tl(1)Br6 octahedra. All Rb(1)-Br(1) bond lengths are 3.98 Å. Au(1) is bonded to six equivalent Br(1) atoms to form AuBr6 octahedra that share corners with six equivalent Tl(1)Br6 octahedra and faces with eight equivalent Rb(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. All Au(1)-Br(1) bond lengths are 2.73 Å. Tl(1) is bonded to six equivalent Br(1) atoms to form TlBr6 octahedra that share corners with six equivalent Au(1)Br6 octahedra and faces with eight equivalent Rb(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. All Tl(1)-Br(1) bond lengths are 2.90 Å. Br(1) is bonded to four equivalent Rb(1), one Au(1), and one Tl(1) atom to form a mixture of distorted face, corner, and edge-sharing BrRb4TlAu octahedra. The corner-sharing octahedral tilt angles range from 0-60°.