Sr(AuIn)2 crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded in a 11-coordinate geometry to three equivalent Au(2), four equivalent Au(1), two equivalent In(1), and two equivalent In(2) atoms. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), two equivalent In(2), and three equivalent In(1) atoms. In the second Au site, Au(2) is bonded in a 9-coordinate geometry to three equivalent Sr(1), two equivalent Au(2), one In(1), and three equivalent In(2) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded to two equivalent Sr(1), one Au(2), and three equivalent Au(1) atoms to form a mixture of distorted corner and edge-sharing InSr2Au4 tetrahedra. In the second In site, In(2) is bonded in a 5-coordinate geometry to two equivalent Sr(1), two equivalent Au(1), and three equivalent Au(2) atoms.
Sr(AuIn)2 crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded in a 11-coordinate geometry to three equivalent Au(2), four equivalent Au(1), two equivalent In(1), and two equivalent In(2) atoms. There is one shorter (3.22 Å) and two longer (3.43 Å) Sr(1)-Au(2) bond lengths. There are two shorter (3.48 Å) and two longer (3.52 Å) Sr(1)-Au(1) bond lengths. There is one shorter (3.61 Å) and one longer (3.62 Å) Sr(1)-In(1) bond length. Both Sr(1)-In(2) bond lengths are 3.54 Å. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), two equivalent In(2), and three equivalent In(1) atoms. There is one shorter (2.75 Å) and one longer (2.93 Å) Au(1)-In(2) bond length. There are two shorter (2.83 Å) and one longer (2.90 Å) Au(1)-In(1) bond length. In the second Au site, Au(2) is bonded in a 9-coordinate geometry to three equivalent Sr(1), two equivalent Au(2), one In(1), and three equivalent In(2) atoms. Both Au(2)-Au(2) bond lengths are 2.85 Å. The Au(2)-In(1) bond length is 2.72 Å. There are two shorter (2.82 Å) and one longer (2.87 Å) Au(2)-In(2) bond length. There are two inequivalent In sites. In the first In site, In(1) is bonded to two equivalent Sr(1), one Au(2), and three equivalent Au(1) atoms to form a mixture of distorted corner and edge-sharing InSr2Au4 tetrahedra. In the second In site, In(2) is bonded in a 5-coordinate geometry to two equivalent Sr(1), two equivalent Au(1), and three equivalent Au(2) atoms.