Sr5(ReN3)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 5-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 a mixture of distorted corner and edge-sharing SrN5 trigonal bipyramids. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. Re(1) is bonded in a 4-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 Re(1) atom to form a mixture of distorted corner and edge-sharing NSr5Re octahedra. The corner-sharing octahedral tilt angles range from 17-74°. 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 Re(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 Re(1) atom to form a mixture of distorted face, corner, and edge-sharing NSr5Re octahedra. The corner-sharing octahedral tilt angles range from 17-74°.
Sr5(ReN3)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 5-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. Both Sr(1)-N(1) bond lengths are 2.71 Å. There is one shorter (2.84 Å) and one longer (2.85 Å) Sr(1)-N(2) bond length. There is one shorter (2.83 Å) and one longer (3.27 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 a mixture of distorted corner and edge-sharing SrN5 trigonal bipyramids. The Sr(2)-N(3) bond length is 2.55 Å. There is one shorter (2.53 Å) and one longer (2.83 Å) Sr(2)-N(1) bond length. There is one shorter (2.68 Å) and one longer (2.69 Å) Sr(2)-N(2) bond length. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. Both Sr(3)-N(1) bond lengths are 2.90 Å. Both Sr(3)-N(2) bond lengths are 2.60 Å. Both Sr(3)-N(3) bond lengths are 2.84 Å. Re(1) is bonded in a 4-coordinate geometry to one N(1), one N(2), and two equivalent N(3) atoms. The Re(1)-N(1) bond length is 1.91 Å. The Re(1)-N(2) bond length is 1.91 Å. There is one shorter (1.87 Å) and one longer (2.53 Å) Re(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 Re(1) atom to form a mixture of distorted corner and edge-sharing NSr5Re octahedra. The corner-sharing octahedral tilt angles range from 17-74°. 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 Re(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 Re(1) atom to form a mixture of distorted face, corner, and edge-sharing NSr5Re octahedra. The corner-sharing octahedral tilt angles range from 17-74°.