Sr3(AuN2)2 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 5-coordinate geometry to two equivalent N(1) and three equivalent N(2) atoms. In the second Sr site, Sr(2) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a distorted linear geometry to two equivalent N(2) atoms. In the second Au site, Au(2) is bonded in a linear geometry to two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), and one N(1) atom. In the second N site, N(2) is bonded to one Sr(2), three equivalent Sr(1), one Au(1), and one Au(2) atom to form a mixture of corner, edge, and face-sharing NSr4Au2 octahedra. The corner-sharing octahedral tilt angles range from 10-50°.
Sr3(AuN2)2 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 5-coordinate geometry to two equivalent N(1) and three equivalent N(2) atoms. There is one shorter (2.57 Å) and one longer (2.62 Å) Sr(1)-N(1) bond length. There are a spread of Sr(1)-N(2) bond distances ranging from 2.65-2.73 Å. In the second Sr site, Sr(2) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. Both Sr(2)-N(1) bond lengths are 2.63 Å. Both Sr(2)-N(2) bond lengths are 2.62 Å. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a distorted linear geometry to two equivalent N(2) atoms. Both Au(1)-N(2) bond lengths are 2.13 Å. In the second Au site, Au(2) is bonded in a linear geometry to two equivalent N(2) atoms. Both Au(2)-N(2) bond lengths are 2.13 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), and one N(1) atom. The N(1)-N(1) bond length is 1.21 Å. In the second N site, N(2) is bonded to one Sr(2), three equivalent Sr(1), one Au(1), and one Au(2) atom to form a mixture of corner, edge, and face-sharing NSr4Au2 octahedra. The corner-sharing octahedral tilt angles range from 10-50°.