SrTi7N10 crystallizes in the monoclinic Pc space group. Sr(1) is bonded in a 4-coordinate geometry to one N(1), one N(2), one N(4), and one N(7) atom. There are seven inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one N(1), one N(2), one N(3), and one N(6) atom to form a mixture of corner and edge-sharing TiN4 tetrahedra. In the second Ti site, Ti(2) is bonded to one N(2), one N(3), one N(4), and one N(6) atom to form a mixture of corner and edge-sharing TiN4 tetrahedra. In the third Ti site, Ti(3) is bonded to one N(4), one N(5), one N(7), and one N(8) atom to form distorted corner-sharing TiN4 tetrahedra. In the fourth Ti site, Ti(4) is bonded to one N(10), one N(2), one N(7), and one N(9) atom to form corner-sharing TiN4 tetrahedra. In the fifth Ti site, Ti(5) is bonded to one N(1), one N(7), one N(8), and one N(9) atom to form corner-sharing TiN4 tetrahedra. In the sixth Ti site, Ti(6) is bonded to one N(10), one N(3), one N(5), and one N(8) atom to form corner-sharing TiN4 tetrahedra. In the seventh Ti site, Ti(7) is bonded to one N(10), one N(5), one N(6), and one N(9) atom to form corner-sharing TiN4 tetrahedra. There are ten inequivalent N sites. In the first N site, N(9) is bonded in a trigonal planar geometry to one Ti(4), one Ti(5), and one Ti(7) atom. In the second N site, N(10) is bonded in a distorted trigonal planar geometry to one Ti(4), one Ti(6), and one Ti(7) atom. In the third N site, N(1) is bonded in a 2-coordinate geometry to one Sr(1), one Ti(1), and one Ti(5) atom. In the fourth N site, N(2) is bonded to one Sr(1), one Ti(1), one Ti(2), and one Ti(4) atom to form distorted edge-sharing NSrTi3 tetrahedra. In the fifth N site, N(3) is bonded in a distorted trigonal planar geometry to one Ti(1), one Ti(2), and one Ti(6) atom. In the sixth N site, N(4) is bonded in a distorted trigonal planar geometry to one Sr(1), one Ti(2), and one Ti(3) atom. In the seventh N site, N(5) is bonded in a trigonal non-coplanar geometry to one Ti(3), one Ti(6), and one Ti(7) atom. In the eighth N site, N(6) is bonded in a trigonal planar geometry to one Ti(1), one Ti(2), and one Ti(7) atom. In the ninth N site, N(7) is bonded to one Sr(1), one Ti(3), one Ti(4), and one Ti(5) atom to form distorted edge-sharing NSrTi3 trigonal pyramids. In the tenth N site, N(8) is bonded in a trigonal non-coplanar geometry to one Ti(3), one Ti(5), and one Ti(6) atom.
SrTi7N10 crystallizes in the monoclinic Pc space group. Sr(1) is bonded in a 4-coordinate geometry to one N(1), one N(2), one N(4), and one N(7) atom. The Sr(1)-N(1) bond length is 2.81 Å. The Sr(1)-N(2) bond length is 2.63 Å. The Sr(1)-N(4) bond length is 2.55 Å. The Sr(1)-N(7) bond length is 2.72 Å. There are seven inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one N(1), one N(2), one N(3), and one N(6) atom to form a mixture of corner and edge-sharing TiN4 tetrahedra. The Ti(1)-N(1) bond length is 1.87 Å. The Ti(1)-N(2) bond length is 1.94 Å. The Ti(1)-N(3) bond length is 1.95 Å. The Ti(1)-N(6) bond length is 1.93 Å. In the second Ti site, Ti(2) is bonded to one N(2), one N(3), one N(4), and one N(6) atom to form a mixture of corner and edge-sharing TiN4 tetrahedra. The Ti(2)-N(2) bond length is 1.98 Å. The Ti(2)-N(3) bond length is 1.93 Å. The Ti(2)-N(4) bond length is 1.87 Å. The Ti(2)-N(6) bond length is 1.93 Å. In the third Ti site, Ti(3) is bonded to one N(4), one N(5), one N(7), and one N(8) atom to form distorted corner-sharing TiN4 tetrahedra. The Ti(3)-N(4) bond length is 1.87 Å. The Ti(3)-N(5) bond length is 1.95 Å. The Ti(3)-N(7) bond length is 1.96 Å. The Ti(3)-N(8) bond length is 1.98 Å. In the fourth Ti site, Ti(4) is bonded to one N(10), one N(2), one N(7), and one N(9) atom to form corner-sharing TiN4 tetrahedra. The Ti(4)-N(10) bond length is 1.90 Å. The Ti(4)-N(2) bond length is 1.90 Å. The Ti(4)-N(7) bond length is 1.93 Å. The Ti(4)-N(9) bond length is 1.92 Å. In the fifth Ti site, Ti(5) is bonded to one N(1), one N(7), one N(8), and one N(9) atom to form corner-sharing TiN4 tetrahedra. The Ti(5)-N(1) bond length is 1.85 Å. The Ti(5)-N(7) bond length is 1.99 Å. The Ti(5)-N(8) bond length is 1.94 Å. The Ti(5)-N(9) bond length is 1.94 Å. In the sixth Ti site, Ti(6) is bonded to one N(10), one N(3), one N(5), and one N(8) atom to form corner-sharing TiN4 tetrahedra. The Ti(6)-N(10) bond length is 1.95 Å. The Ti(6)-N(3) bond length is 1.91 Å. The Ti(6)-N(5) bond length is 1.92 Å. The Ti(6)-N(8) bond length is 1.90 Å. In the seventh Ti site, Ti(7) is bonded to one N(10), one N(5), one N(6), and one N(9) atom to form corner-sharing TiN4 tetrahedra. The Ti(7)-N(10) bond length is 1.91 Å. The Ti(7)-N(5) bond length is 1.88 Å. The Ti(7)-N(6) bond length is 1.93 Å. The Ti(7)-N(9) bond length is 1.92 Å. There are ten inequivalent N sites. In the first N site, N(9) is bonded in a trigonal planar geometry to one Ti(4), one Ti(5), and one Ti(7) atom. In the second N site, N(10) is bonded in a distorted trigonal planar geometry to one Ti(4), one Ti(6), and one Ti(7) atom. In the third N site, N(1) is bonded in a 2-coordinate geometry to one Sr(1), one Ti(1), and one Ti(5) atom. In the fourth N site, N(2) is bonded to one Sr(1), one Ti(1), one Ti(2), and one Ti(4) atom to form distorted edge-sharing NSrTi3 tetrahedra. In the fifth N site, N(3) is bonded in a distorted trigonal planar geometry to one Ti(1), one Ti(2), and one Ti(6) atom. In the sixth N site, N(4) is bonded in a distorted trigonal planar geometry to one Sr(1), one Ti(2), and one Ti(3) atom. In the seventh N site, N(5) is bonded in a trigonal non-coplanar geometry to one Ti(3), one Ti(6), and one Ti(7) atom. In the eighth N site, N(6) is bonded in a trigonal planar geometry to one Ti(1), one Ti(2), and one Ti(7) atom. In the ninth N site, N(7) is bonded to one Sr(1), one Ti(3), one Ti(4), and one Ti(5) atom to form distorted edge-sharing NSrTi3 trigonal pyramids. In the tenth N site, N(8) is bonded in a trigonal non-coplanar geometry to one Ti(3), one Ti(5), and one Ti(6) atom.