CuGe7N10 crystallizes in the monoclinic Pc space group. Cu(1) is bonded in a T-shaped geometry to one N(1), one N(4), and one N(7) atom. There are seven inequivalent Ge sites. In the first Ge site, Ge(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 GeN4 tetrahedra. In the second Ge site, Ge(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 GeN4 tetrahedra. In the third Ge site, Ge(3) is bonded to one N(4), one N(5), one N(7), and one N(8) atom to form corner-sharing GeN4 tetrahedra. In the fourth Ge site, Ge(4) is bonded to one N(10), one N(2), one N(7), and one N(9) atom to form corner-sharing GeN4 tetrahedra. In the fifth Ge site, Ge(5) is bonded to one N(1), one N(7), one N(8), and one N(9) atom to form corner-sharing GeN4 tetrahedra. In the sixth Ge site, Ge(6) is bonded to one N(10), one N(3), one N(5), and one N(8) atom to form corner-sharing GeN4 tetrahedra. In the seventh Ge site, Ge(7) is bonded to one N(10), one N(5), one N(6), and one N(9) atom to form corner-sharing GeN4 tetrahedra. There are ten inequivalent N sites. In the first N site, N(9) is bonded in a trigonal non-coplanar geometry to one Ge(4), one Ge(5), and one Ge(7) atom. In the second N site, N(10) is bonded in a trigonal planar geometry to one Ge(4), one Ge(6), and one Ge(7) atom. In the third N site, N(1) is bonded in a distorted T-shaped geometry to one Cu(1), one Ge(1), and one Ge(5) atom. In the fourth N site, N(2) is bonded in a distorted trigonal planar geometry to one Ge(1), one Ge(2), and one Ge(4) atom. In the fifth N site, N(3) is bonded in a distorted trigonal planar geometry to one Ge(1), one Ge(2), and one Ge(6) atom. In the sixth N site, N(4) is bonded in a distorted trigonal planar geometry to one Cu(1), one Ge(2), and one Ge(3) atom. In the seventh N site, N(5) is bonded in a trigonal planar geometry to one Ge(3), one Ge(6), and one Ge(7) atom. In the eighth N site, N(6) is bonded in a trigonal planar geometry to one Ge(1), one Ge(2), and one Ge(7) atom. In the ninth N site, N(7) is bonded in a trigonal pyramidal geometry to one Cu(1), one Ge(3), one Ge(4), and one Ge(5) atom. In the tenth N site, N(8) is bonded in a trigonal planar geometry to one Ge(3), one Ge(5), and one Ge(6) atom.
CuGe7N10 crystallizes in the monoclinic Pc space group. Cu(1) is bonded in a T-shaped geometry to one N(1), one N(4), and one N(7) atom. The Cu(1)-N(1) bond length is 2.02 Å. The Cu(1)-N(4) bond length is 2.00 Å. The Cu(1)-N(7) bond length is 2.11 Å. There are seven inequivalent Ge sites. In the first Ge site, Ge(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 GeN4 tetrahedra. The Ge(1)-N(1) bond length is 1.85 Å. The Ge(1)-N(2) bond length is 1.89 Å. The Ge(1)-N(3) bond length is 1.92 Å. The Ge(1)-N(6) bond length is 1.85 Å. In the second Ge site, Ge(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 GeN4 tetrahedra. The Ge(2)-N(2) bond length is 1.89 Å. The Ge(2)-N(3) bond length is 1.90 Å. The Ge(2)-N(4) bond length is 1.83 Å. The Ge(2)-N(6) bond length is 1.86 Å. In the third Ge site, Ge(3) is bonded to one N(4), one N(5), one N(7), and one N(8) atom to form corner-sharing GeN4 tetrahedra. The Ge(3)-N(4) bond length is 1.85 Å. The Ge(3)-N(5) bond length is 1.86 Å. The Ge(3)-N(7) bond length is 1.89 Å. The Ge(3)-N(8) bond length is 1.87 Å. In the fourth Ge site, Ge(4) is bonded to one N(10), one N(2), one N(7), and one N(9) atom to form corner-sharing GeN4 tetrahedra. The Ge(4)-N(10) bond length is 1.82 Å. The Ge(4)-N(2) bond length is 1.81 Å. The Ge(4)-N(7) bond length is 1.88 Å. The Ge(4)-N(9) bond length is 1.86 Å. In the fifth Ge site, Ge(5) is bonded to one N(1), one N(7), one N(8), and one N(9) atom to form corner-sharing GeN4 tetrahedra. The Ge(5)-N(1) bond length is 1.85 Å. The Ge(5)-N(7) bond length is 1.94 Å. The Ge(5)-N(8) bond length is 1.87 Å. The Ge(5)-N(9) bond length is 1.84 Å. In the sixth Ge site, Ge(6) is bonded to one N(10), one N(3), one N(5), and one N(8) atom to form corner-sharing GeN4 tetrahedra. The Ge(6)-N(10) bond length is 1.85 Å. The Ge(6)-N(3) bond length is 1.83 Å. The Ge(6)-N(5) bond length is 1.83 Å. The Ge(6)-N(8) bond length is 1.85 Å. In the seventh Ge site, Ge(7) is bonded to one N(10), one N(5), one N(6), and one N(9) atom to form corner-sharing GeN4 tetrahedra. The Ge(7)-N(10) bond length is 1.85 Å. The Ge(7)-N(5) bond length is 1.85 Å. The Ge(7)-N(6) bond length is 1.82 Å. The Ge(7)-N(9) bond length is 1.86 Å. There are ten inequivalent N sites. In the first N site, N(9) is bonded in a trigonal non-coplanar geometry to one Ge(4), one Ge(5), and one Ge(7) atom. In the second N site, N(10) is bonded in a trigonal planar geometry to one Ge(4), one Ge(6), and one Ge(7) atom. In the third N site, N(1) is bonded in a distorted T-shaped geometry to one Cu(1), one Ge(1), and one Ge(5) atom. In the fourth N site, N(2) is bonded in a distorted trigonal planar geometry to one Ge(1), one Ge(2), and one Ge(4) atom. In the fifth N site, N(3) is bonded in a distorted trigonal planar geometry to one Ge(1), one Ge(2), and one Ge(6) atom. In the sixth N site, N(4) is bonded in a distorted trigonal planar geometry to one Cu(1), one Ge(2), and one Ge(3) atom. In the seventh N site, N(5) is bonded in a trigonal planar geometry to one Ge(3), one Ge(6), and one Ge(7) atom. In the eighth N site, N(6) is bonded in a trigonal planar geometry to one Ge(1), one Ge(2), and one Ge(7) atom. In the ninth N site, N(7) is bonded in a trigonal pyramidal geometry to one Cu(1), one Ge(3), one Ge(4), and one Ge(5) atom. In the tenth N site, N(8) is bonded in a trigonal planar geometry to one Ge(3), one Ge(5), and one Ge(6) atom.