Sr3(SbN2)2 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. In the second Sr site, Sr(2) is bonded in a 4-coordinate geometry to four equivalent N(1) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a tetrahedral geometry to two equivalent N(1) and two equivalent N(2) atoms. In the second Sb site, Sb(2) is bonded in a distorted bent 120 degrees geometry to two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 5-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and one Sb(1) atom. In the second N site, N(2) is bonded in a distorted see-saw-like geometry to two equivalent Sr(1), one Sb(1), and one Sb(2) atom.
Sr3(SbN2)2 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. There is one shorter (2.45 Å) and one longer (2.97 Å) Sr(1)-N(1) bond length. There is one shorter (2.57 Å) and one longer (2.64 Å) Sr(1)-N(2) bond length. In the second Sr site, Sr(2) is bonded in a 4-coordinate geometry to four equivalent N(1) atoms. There are two shorter (2.53 Å) and two longer (2.80 Å) Sr(2)-N(1) bond lengths. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a tetrahedral geometry to two equivalent N(1) and two equivalent N(2) atoms. Both Sb(1)-N(1) bond lengths are 1.99 Å. Both Sb(1)-N(2) bond lengths are 2.08 Å. In the second Sb site, Sb(2) is bonded in a distorted bent 120 degrees geometry to two equivalent N(2) atoms. Both Sb(2)-N(2) bond lengths are 2.16 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 5-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and one Sb(1) atom. In the second N site, N(2) is bonded in a distorted see-saw-like geometry to two equivalent Sr(1), one Sb(1), and one Sb(2) atom.