Sr3(BN2)2 crystallizes in the cubic Pm-3m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to three equivalent N(1) and three equivalent N(2) atoms to form a mixture of distorted face, corner, and edge-sharing SrN6 octahedra. The corner-sharing octahedral tilt angles range from 19-29°. In the second Sr site, Sr(2) is bonded to six equivalent N(2) atoms to form face-sharing SrN6 octahedra. There are two inequivalent B sites. In the first B site, B(1) is bonded in a linear geometry to two equivalent N(2) atoms. In the second B site, B(2) is bonded in a linear geometry to two equivalent N(1) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted single-bond geometry to four equivalent Sr(1) and one B(2) atom. In the second N site, N(2) is bonded in a 6-coordinate geometry to one Sr(2), four equivalent Sr(1), and one B(1) atom.
Sr3(BN2)2 crystallizes in the cubic Pm-3m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to three equivalent N(1) and three equivalent N(2) atoms to form a mixture of distorted face, corner, and edge-sharing SrN6 octahedra. The corner-sharing octahedral tilt angles range from 19-29°. All Sr(1)-N(1) bond lengths are 2.65 Å. All Sr(1)-N(2) bond lengths are 2.88 Å. In the second Sr site, Sr(2) is bonded to six equivalent N(2) atoms to form face-sharing SrN6 octahedra. All Sr(2)-N(2) bond lengths are 2.49 Å. There are two inequivalent B sites. In the first B site, B(1) is bonded in a linear geometry to two equivalent N(2) atoms. Both B(1)-N(2) bond lengths are 1.34 Å. In the second B site, B(2) is bonded in a linear geometry to two equivalent N(1) atoms. Both B(2)-N(1) bond lengths are 1.34 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted single-bond geometry to four equivalent Sr(1) and one B(2) atom. In the second N site, N(2) is bonded in a 6-coordinate geometry to one Sr(2), four equivalent Sr(1), and one B(1) atom.