Sr3(IrN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(2) and four equivalent N(1) atoms. In the second Sr site, Sr(2) is bonded to two equivalent N(1) and four equivalent N(2) atoms to form distorted edge-sharing SrN6 octahedra. Ir(1) is bonded in a 3-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 7-coordinate geometry to one Sr(2), four equivalent Sr(1), and two equivalent Ir(1) atoms. In the second N site, N(2) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ir(1) atoms.
Sr3(IrN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(2) and four equivalent N(1) atoms. Both Sr(1)-N(2) bond lengths are 2.70 Å. There are a spread of Sr(1)-N(1) bond distances ranging from 2.63-3.11 Å. In the second Sr site, Sr(2) is bonded to two equivalent N(1) and four equivalent N(2) atoms to form distorted edge-sharing SrN6 octahedra. Both Sr(2)-N(1) bond lengths are 2.76 Å. There are two shorter (2.59 Å) and two longer (2.63 Å) Sr(2)-N(2) bond lengths. Ir(1) is bonded in a 3-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. There is one shorter (1.90 Å) and one longer (2.52 Å) Ir(1)-N(1) bond length. There is one shorter (2.06 Å) and one longer (2.07 Å) Ir(1)-N(2) bond length. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 7-coordinate geometry to one Sr(2), four equivalent Sr(1), and two equivalent Ir(1) atoms. In the second N site, N(2) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ir(1) atoms.