Ba5(SnN3)2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. In the second Ba site, Ba(2) is bonded to one N(3), two equivalent N(1), and two equivalent N(2) atoms to form distorted BaN5 trigonal bipyramids that share corners with two equivalent Sn(1)N4 tetrahedra, corners with two equivalent Ba(2)N5 trigonal bipyramids, edges with two equivalent Sn(1)N4 tetrahedra, and  an edgeedge with one Ba(2)N5 trigonal bipyramid. In the third Ba site, Ba(3) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. Sn(1) is bonded to one N(1), one N(2), and two equivalent N(3) atoms to form SnN4 tetrahedra that share corners with two equivalent Ba(2)N5 trigonal bipyramids,  an edgeedge with one Sn(1)N4 tetrahedra, and edges with two equivalent Ba(2)N5 trigonal bipyramids. There are three inequivalent N sites. In the first N site, N(2) is bonded in a 6-coordinate geometry to one Ba(3), two equivalent Ba(1), two equivalent Ba(2), and one Sn(1) atom. In the second N site, N(3) is bonded in a 6-coordinate geometry to one Ba(2), one Ba(3), two equivalent Ba(1), and two equivalent Sn(1) atoms. In the third N site, N(1) is bonded to one Ba(3), two equivalent Ba(1), two equivalent Ba(2), and one Sn(1) atom to form a mixture of distorted face and edge-sharing NBa5Sn octahedra.
Ba5(SnN3)2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. There is one shorter (2.74 Å) and one longer (3.04 Å) Ba(1)-N(1) bond length. There is one shorter (3.03 Å) and one longer (3.35 Å) Ba(1)-N(2) bond length. There is one shorter (2.99 Å) and one longer (3.22 Å) Ba(1)-N(3) bond length. In the second Ba site, Ba(2) is bonded to one N(3), two equivalent N(1), and two equivalent N(2) atoms to form distorted BaN5 trigonal bipyramids that share corners with two equivalent Sn(1)N4 tetrahedra, corners with two equivalent Ba(2)N5 trigonal bipyramids, edges with two equivalent Sn(1)N4 tetrahedra, and  an edgeedge with one Ba(2)N5 trigonal bipyramid. The Ba(2)-N(3) bond length is 2.92 Å. There is one shorter (2.60 Å) and one longer (2.96 Å) Ba(2)-N(1) bond length. There is one shorter (2.76 Å) and one longer (2.93 Å) Ba(2)-N(2) bond length. In the third Ba site, Ba(3) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. Both Ba(3)-N(1) bond lengths are 3.26 Å. Both Ba(3)-N(2) bond lengths are 2.62 Å. Both Ba(3)-N(3) bond lengths are 3.25 Å. Sn(1) is bonded to one N(1), one N(2), and two equivalent N(3) atoms to form SnN4 tetrahedra that share corners with two equivalent Ba(2)N5 trigonal bipyramids,  an edgeedge with one Sn(1)N4 tetrahedra, and edges with two equivalent Ba(2)N5 trigonal bipyramids. The Sn(1)-N(1) bond length is 2.07 Å. The Sn(1)-N(2) bond length is 2.10 Å. There is one shorter (2.15 Å) and one longer (2.21 Å) Sn(1)-N(3) bond length. There are three inequivalent N sites. In the first N site, N(2) is bonded in a 6-coordinate geometry to one Ba(3), two equivalent Ba(1), two equivalent Ba(2), and one Sn(1) atom. In the second N site, N(3) is bonded in a 6-coordinate geometry to one Ba(2), one Ba(3), two equivalent Ba(1), and two equivalent Sn(1) atoms. In the third N site, N(1) is bonded to one Ba(3), two equivalent Ba(1), two equivalent Ba(2), and one Sn(1) atom to form a mixture of distorted face and edge-sharing NBa5Sn octahedra.