Sr3(GeN)2 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 2-coordinate geometry to three equivalent Ge(1) and two equivalent N(2) atoms. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to one Ge(1), two equivalent N(1), and three equivalent N(2) atoms. In the third Sr site, Sr(3) is bonded in a 3-coordinate geometry to three equivalent Ge(1) and three equivalent N(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Sr(2), three equivalent Sr(1), three equivalent Sr(3), and two equivalent Ge(1) atoms. In the second Ge site, Ge(2) is bonded in a distorted water-like geometry to one N(1) and one N(2) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Sr(2), three equivalent Sr(3), and one Ge(2) atom to form a mixture of distorted edge, face, and corner-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 46-56°. In the second N site, N(2) is bonded to two equivalent Sr(1), three equivalent Sr(2), and one Ge(2) atom to form a mixture of distorted edge, face, and corner-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 46-56°.
Sr3(GeN)2 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 2-coordinate geometry to three equivalent Ge(1) and two equivalent N(2) atoms. There are two shorter (3.38 Å) and one longer (3.67 Å) Sr(1)-Ge(1) bond length. Both Sr(1)-N(2) bond lengths are 2.63 Å. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to one Ge(1), two equivalent N(1), and three equivalent N(2) atoms. The Sr(2)-Ge(1) bond length is 3.55 Å. Both Sr(2)-N(1) bond lengths are 2.76 Å. There is one shorter (2.56 Å) and two longer (2.77 Å) Sr(2)-N(2) bond lengths. In the third Sr site, Sr(3) is bonded in a 3-coordinate geometry to three equivalent Ge(1) and three equivalent N(1) atoms. There are two shorter (3.34 Å) and one longer (3.63 Å) Sr(3)-Ge(1) bond length. There is one shorter (2.51 Å) and two longer (2.65 Å) Sr(3)-N(1) bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Sr(2), three equivalent Sr(1), three equivalent Sr(3), and two equivalent Ge(1) atoms. Both Ge(1)-Ge(1) bond lengths are 2.45 Å. In the second Ge site, Ge(2) is bonded in a distorted water-like geometry to one N(1) and one N(2) atom. The Ge(2)-N(1) bond length is 1.88 Å. The Ge(2)-N(2) bond length is 1.88 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Sr(2), three equivalent Sr(3), and one Ge(2) atom to form a mixture of distorted edge, face, and corner-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 46-56°. In the second N site, N(2) is bonded to two equivalent Sr(1), three equivalent Sr(2), and one Ge(2) atom to form a mixture of distorted edge, face, and corner-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 46-56°.