Sr(AuGa)2 crystallizes in the tetragonal P4/nmm space group. Sr(1) is bonded in a 16-coordinate geometry to four equivalent Au(1), four equivalent Au(2), four equivalent Ga(1), and four equivalent Ga(2) atoms. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a 5-coordinate geometry to four equivalent Sr(1), one Ga(1), and four equivalent Ga(2) atoms. In the second Au site, Au(2) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and four equivalent Ga(1) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 5-coordinate geometry to four equivalent Sr(1), one Au(1), and four equivalent Au(2) atoms. In the second Ga site, Ga(2) is bonded to four equivalent Sr(1) and four equivalent Au(1) atoms to form a mixture of distorted edge and face-sharing GaSr4Au4 tetrahedra.
Sr(AuGa)2 crystallizes in the tetragonal P4/nmm space group. Sr(1) is bonded in a 16-coordinate geometry to four equivalent Au(1), four equivalent Au(2), four equivalent Ga(1), and four equivalent Ga(2) atoms. All Sr(1)-Au(1) bond lengths are 3.44 Å. All Sr(1)-Au(2) bond lengths are 3.46 Å. All Sr(1)-Ga(1) bond lengths are 3.45 Å. All Sr(1)-Ga(2) bond lengths are 3.46 Å. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a 5-coordinate geometry to four equivalent Sr(1), one Ga(1), and four equivalent Ga(2) atoms. The Au(1)-Ga(1) bond length is 2.58 Å. All Au(1)-Ga(2) bond lengths are 2.63 Å. In the second Au site, Au(2) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and four equivalent Ga(1) atoms. All Au(2)-Ga(1) bond lengths are 2.62 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 5-coordinate geometry to four equivalent Sr(1), one Au(1), and four equivalent Au(2) atoms. In the second Ga site, Ga(2) is bonded to four equivalent Sr(1) and four equivalent Au(1) atoms to form a mixture of distorted edge and face-sharing GaSr4Au4 tetrahedra.