Sr5(RuN3)2 is Krennerite-derived structured and crystallizes in the monoclinic C2/c space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. In the second Sr site, Sr(2) is bonded to one N(3), two equivalent N(1), and two equivalent N(2) atoms to form distorted SrN5 trigonal bipyramids that share  a cornercorner with one Sr(3)N6 pentagonal pyramid, corners with two equivalent Sr(2)N5 trigonal bipyramids, edges with two equivalent Sr(3)N6 pentagonal pyramids, and  an edgeedge with one Sr(2)N5 trigonal bipyramid. In the third Sr site, Sr(3) is bonded to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms to form a mixture of distorted corner and edge-sharing SrN6 pentagonal pyramids. Ru(1) is bonded in a 3-coordinate geometry to one N(1), one N(2), and two equivalent N(3) atoms. There are three inequivalent N sites. In the first N site, N(2) is bonded to one Sr(3), two equivalent Sr(1), two equivalent Sr(2), and one Ru(1) atom to form a mixture of distorted corner and edge-sharing NSr5Ru octahedra. The corner-sharing octahedral tilt angles range from 17-75°. In the second N site, N(3) is bonded in a 6-coordinate geometry to one Sr(2), one Sr(3), two equivalent Sr(1), and two equivalent Ru(1) atoms. In the third N site, N(1) is bonded to one Sr(3), two equivalent Sr(1), two equivalent Sr(2), and one Ru(1) atom to form a mixture of distorted corner, face, and edge-sharing NSr5Ru octahedra. The corner-sharing octahedral tilt angles range from 17-75°.
Sr5(RuN3)2 is Krennerite-derived structured and crystallizes in the monoclinic C2/c space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. There is one shorter (2.67 Å) and one longer (2.72 Å) Sr(1)-N(1) bond length. There is one shorter (2.74 Å) and one longer (2.90 Å) Sr(1)-N(2) bond length. There is one shorter (2.77 Å) and one longer (3.17 Å) Sr(1)-N(3) bond length. In the second Sr site, Sr(2) is bonded to one N(3), two equivalent N(1), and two equivalent N(2) atoms to form distorted SrN5 trigonal bipyramids that share  a cornercorner with one Sr(3)N6 pentagonal pyramid, corners with two equivalent Sr(2)N5 trigonal bipyramids, edges with two equivalent Sr(3)N6 pentagonal pyramids, and  an edgeedge with one Sr(2)N5 trigonal bipyramid. The Sr(2)-N(3) bond length is 2.58 Å. There is one shorter (2.54 Å) and one longer (2.77 Å) Sr(2)-N(1) bond length. There is one shorter (2.63 Å) and one longer (2.65 Å) Sr(2)-N(2) bond length. In the third Sr site, Sr(3) is bonded to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms to form a mixture of distorted corner and edge-sharing SrN6 pentagonal pyramids. Both Sr(3)-N(1) bond lengths are 2.84 Å. Both Sr(3)-N(2) bond lengths are 2.58 Å. Both Sr(3)-N(3) bond lengths are 2.84 Å. Ru(1) is bonded in a 3-coordinate geometry to one N(1), one N(2), and two equivalent N(3) atoms. The Ru(1)-N(1) bond length is 1.90 Å. The Ru(1)-N(2) bond length is 1.91 Å. There is one shorter (1.86 Å) and one longer (2.52 Å) Ru(1)-N(3) bond length. There are three inequivalent N sites. In the first N site, N(2) is bonded to one Sr(3), two equivalent Sr(1), two equivalent Sr(2), and one Ru(1) atom to form a mixture of distorted corner and edge-sharing NSr5Ru octahedra. The corner-sharing octahedral tilt angles range from 17-75°. In the second N site, N(3) is bonded in a 6-coordinate geometry to one Sr(2), one Sr(3), two equivalent Sr(1), and two equivalent Ru(1) atoms. In the third N site, N(1) is bonded to one Sr(3), two equivalent Sr(1), two equivalent Sr(2), and one Ru(1) atom to form a mixture of distorted corner, face, and edge-sharing NSr5Ru octahedra. The corner-sharing octahedral tilt angles range from 17-75°.