Cs2AuGaCl6 crystallizes in the cubic Fm-3m space group. Cs(1) is bonded to twelve equivalent Cl(1) atoms to form CsCl12 cuboctahedra that share corners with twelve equivalent Cs(1)Cl12 cuboctahedra, faces with six equivalent Cs(1)Cl12 cuboctahedra, faces with four equivalent Au(1)Cl6 octahedra, and faces with four equivalent Ga(1)Cl6 octahedra. Au(1) is bonded to six equivalent Cl(1) atoms to form AuCl6 octahedra that share corners with six equivalent Ga(1)Cl6 octahedra and faces with eight equivalent Cs(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 Au(1)Cl6 octahedra and faces with eight equivalent Cs(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded to four equivalent Cs(1), one Au(1), and one Ga(1) atom to form a mixture of distorted corner, face, and edge-sharing ClCs4GaAu octahedra. The corner-sharing octahedral tilt angles range from 0-60°.
Cs2AuGaCl6 crystallizes in the cubic Fm-3m space group. Cs(1) is bonded to twelve equivalent Cl(1) atoms to form CsCl12 cuboctahedra that share corners with twelve equivalent Cs(1)Cl12 cuboctahedra, faces with six equivalent Cs(1)Cl12 cuboctahedra, faces with four equivalent Au(1)Cl6 octahedra, and faces with four equivalent Ga(1)Cl6 octahedra. All Cs(1)-Cl(1) bond lengths are 3.69 Å. Au(1) is bonded to six equivalent Cl(1) atoms to form AuCl6 octahedra that share corners with six equivalent Ga(1)Cl6 octahedra and faces with eight equivalent Cs(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. All Au(1)-Cl(1) bond lengths are 2.76 Å. Ga(1) is bonded to six equivalent Cl(1) atoms to form GaCl6 octahedra that share corners with six equivalent Au(1)Cl6 octahedra and faces with eight equivalent Cs(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. All Ga(1)-Cl(1) bond lengths are 2.45 Å. Cl(1) is bonded to four equivalent Cs(1), one Au(1), and one Ga(1) atom to form a mixture of distorted corner, face, and edge-sharing ClCs4GaAu octahedra. The corner-sharing octahedral tilt angles range from 0-60°.