Sb3N5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Sb sites. In the first Sb site, Sb(1) 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 SbN6 octahedra. The corner-sharing octahedral tilt angles range from 31-44°. In the second Sb site, Sb(2) is bonded to one N(1), two equivalent N(2), and three equivalent N(3) atoms to form a mixture of distorted corner and edge-sharing SbN6 octahedra. The corner-sharing octahedral tilt angles range from 31-59°. There are three inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Sb(1) and two equivalent Sb(2) atoms to form a mixture of distorted corner and edge-sharing NSb4 tetrahedra. In the second N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one Sb(1) and two equivalent Sb(2) atoms. In the third N site, N(3) is bonded to one Sb(1) and three equivalent Sb(2) atoms to form a mixture of distorted corner and edge-sharing NSb4 trigonal pyramids.
Sb3N5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Sb sites. In the first Sb site, Sb(1) 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 SbN6 octahedra. The corner-sharing octahedral tilt angles range from 31-44°. Both Sb(1)-N(1) bond lengths are 2.15 Å. Both Sb(1)-N(2) bond lengths are 2.00 Å. Both Sb(1)-N(3) bond lengths are 2.21 Å. In the second Sb site, Sb(2) is bonded to one N(1), two equivalent N(2), and three equivalent N(3) atoms to form a mixture of distorted corner and edge-sharing SbN6 octahedra. The corner-sharing octahedral tilt angles range from 31-59°. The Sb(2)-N(1) bond length is 2.22 Å. There is one shorter (2.02 Å) and one longer (2.05 Å) Sb(2)-N(2) bond length. There are two shorter (2.10 Å) and one longer (2.27 Å) Sb(2)-N(3) bond length. There are three inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Sb(1) and two equivalent Sb(2) atoms to form a mixture of distorted corner and edge-sharing NSb4 tetrahedra. In the second N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one Sb(1) and two equivalent Sb(2) atoms. In the third N site, N(3) is bonded to one Sb(1) and three equivalent Sb(2) atoms to form a mixture of distorted corner and edge-sharing NSb4 trigonal pyramids.