Rb(Au2In3)2 crystallizes in the hexagonal P-6m2 space group. Rb(1) is bonded to six equivalent Au(1) and six equivalent In(2) atoms to form face-sharing RbIn6Au6 cuboctahedra. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent In(2), and four equivalent In(1) atoms. In the second Au site, Au(2) is bonded in a 9-coordinate geometry to three equivalent In(1) and six equivalent In(2) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 5-coordinate geometry to one Au(2) and four equivalent Au(1) atoms. In the second In site, In(2) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent Au(1), and two equivalent Au(2) atoms.
Rb(Au2In3)2 crystallizes in the hexagonal P-6m2 space group. Rb(1) is bonded to six equivalent Au(1) and six equivalent In(2) atoms to form face-sharing RbIn6Au6 cuboctahedra. All Rb(1)-Au(1) bond lengths are 3.68 Å. All Rb(1)-In(2) bond lengths are 3.59 Å. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent In(2), and four equivalent In(1) atoms. Both Au(1)-In(2) bond lengths are 2.86 Å. All Au(1)-In(1) bond lengths are 2.90 Å. In the second Au site, Au(2) is bonded in a 9-coordinate geometry to three equivalent In(1) and six equivalent In(2) atoms. All Au(2)-In(1) bond lengths are 2.85 Å. All Au(2)-In(2) bond lengths are 2.96 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 5-coordinate geometry to one Au(2) and four equivalent Au(1) atoms. In the second In site, In(2) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent Au(1), and two equivalent Au(2) atoms.