U7Te12 crystallizes in the monoclinic Pm space group. There are seven inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to one Te(3), one Te(4), two equivalent Te(10), two equivalent Te(11), and two equivalent Te(7) atoms. In the second U site, U(2) is bonded in a 8-coordinate geometry to one Te(1), one Te(5), two equivalent Te(12), two equivalent Te(7), and two equivalent Te(9) atoms. In the third U site, U(3) is bonded in a 8-coordinate geometry to one Te(2), one Te(6), two equivalent Te(11), two equivalent Te(12), and two equivalent Te(8) atoms. In the fourth U site, U(4) is bonded in a 8-coordinate geometry to one Te(10), one Te(12), two equivalent Te(1), two equivalent Te(4), and two equivalent Te(6) atoms. In the fifth U site, U(5) is bonded in a 8-coordinate geometry to one Te(11), one Te(9), two equivalent Te(2), two equivalent Te(4), and two equivalent Te(5) atoms. In the sixth U site, U(6) is bonded in a 8-coordinate geometry to one Te(7), one Te(8), two equivalent Te(3), two equivalent Te(5), and two equivalent Te(6) atoms. In the seventh U site, U(7) is bonded in a 9-coordinate geometry to one Te(1), one Te(2), one Te(3), two equivalent Te(10), two equivalent Te(8), and two equivalent Te(9) atoms. There are twelve inequivalent Te sites. In the first Te site, Te(1) is bonded to one U(2), one U(7), and two equivalent U(4) atoms to form TeU4 tetrahedra that share  a cornercorner with one Te(2)U4 tetrahedra,  a cornercorner with one Te(3)U4 tetrahedra, corners with two equivalent Te(1)U4 tetrahedra,  a cornercorner with one Te(5)U5 trigonal bipyramid, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids, corners with two equivalent Te(7)U5 trigonal bipyramids, corners with two equivalent Te(8)U5 trigonal bipyramids,  an edgeedge with one Te(4)U5 trigonal bipyramid,  an edgeedge with one Te(6)U5 trigonal bipyramid, and edges with two equivalent Te(12)U5 trigonal bipyramids. In the second Te site, Te(2) is bonded to one U(3), one U(7), and two equivalent U(5) atoms to form distorted TeU4 tetrahedra that share  a cornercorner with one Te(1)U4 tetrahedra,  a cornercorner with one Te(3)U4 tetrahedra, corners with two equivalent Te(2)U4 tetrahedra,  a cornercorner with one Te(6)U5 trigonal bipyramid, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids,  an edgeedge with one Te(4)U5 trigonal bipyramid,  an edgeedge with one Te(5)U5 trigonal bipyramid, edges with two equivalent Te(11)U5 trigonal bipyramids, and edges with two equivalent Te(8)U5 trigonal bipyramids. In the third Te site, Te(3) is bonded to one U(1), one U(7), and two equivalent U(6) atoms to form distorted TeU4 tetrahedra that share  a cornercorner with one Te(1)U4 tetrahedra,  a cornercorner with one Te(2)U4 tetrahedra, corners with two equivalent Te(3)U4 tetrahedra,  a cornercorner with one Te(4)U5 trigonal bipyramid, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids,  an edgeedge with one Te(5)U5 trigonal bipyramid,  an edgeedge with one Te(6)U5 trigonal bipyramid, edges with two equivalent Te(7)U5 trigonal bipyramids, and edges with two equivalent Te(8)U5 trigonal bipyramids. In the fourth Te site, Te(4) is bonded to one U(1), two equivalent U(4), and two equivalent U(5) atoms to form distorted TeU5 trigonal bipyramids that share  a cornercorner with one Te(3)U4 tetrahedra, corners with two equivalent Te(1)U4 tetrahedra, corners with two equivalent Te(2)U4 tetrahedra, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids, corners with two equivalent Te(7)U5 trigonal bipyramids,  an edgeedge with one Te(1)U4 tetrahedra,  an edgeedge with one Te(2)U4 tetrahedra,  an edgeedge with one Te(5)U5 trigonal bipyramid,  an edgeedge with one Te(6)U5 trigonal bipyramid, edges with two equivalent Te(11)U5 trigonal bipyramids, and edges with two equivalent Te(4)U5 trigonal bipyramids. In the fifth Te site, Te(5) is bonded to one U(2), two equivalent U(5), and two equivalent U(6) atoms to form distorted TeU5 trigonal bipyramids that share  a cornercorner with one Te(1)U4 tetrahedra, corners with two equivalent Te(2)U4 tetrahedra, corners with two equivalent Te(3)U4 tetrahedra, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids, corners with two equivalent Te(8)U5 trigonal bipyramids,  an edgeedge with one Te(2)U4 tetrahedra,  an edgeedge with one Te(3)U4 tetrahedra,  an edgeedge with one Te(4)U5 trigonal bipyramid,  an edgeedge with one Te(6)U5 trigonal bipyramid, edges with two equivalent Te(5)U5 trigonal bipyramids, and edges with two equivalent Te(7)U5 trigonal bipyramids. In the sixth Te site, Te(6) is bonded to one U(3), two equivalent U(4), and two equivalent U(6) atoms to form distorted TeU5 trigonal bipyramids that share  a cornercorner with one Te(2)U4 tetrahedra, corners with two equivalent Te(1)U4 tetrahedra, corners with two equivalent Te(3)U4 tetrahedra, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, corners with two equivalent Te(7)U5 trigonal bipyramids,  an edgeedge with one Te(1)U4 tetrahedra,  an edgeedge with one Te(3)U4 tetrahedra,  an edgeedge with one Te(4)U5 trigonal bipyramid,  an edgeedge with one Te(5)U5 trigonal bipyramid, edges with two equivalent Te(12)U5 trigonal bipyramids, edges with two equivalent Te(6)U5 trigonal bipyramids, and edges with two equivalent Te(8)U5 trigonal bipyramids. In the seventh Te site, Te(7) is bonded to one U(6), two equivalent U(1), and two equivalent U(2) atoms to form distorted TeU5 trigonal bipyramids that share corners with two equivalent Te(1)U4 tetrahedra,  a cornercorner with one Te(8)U5 trigonal bipyramid, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids, edges with two equivalent Te(3)U4 tetrahedra,  an edgeedge with one Te(11)U5 trigonal bipyramid,  an edgeedge with one Te(12)U5 trigonal bipyramid, edges with two equivalent Te(5)U5 trigonal bipyramids, and edges with two equivalent Te(7)U5 trigonal bipyramids. In the eighth Te site, Te(8) is bonded to one U(6), two equivalent U(3), and two equivalent U(7) atoms to form distorted TeU5 trigonal bipyramids that share corners with two equivalent Te(1)U4 tetrahedra,  a cornercorner with one Te(7)U5 trigonal bipyramid, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, edges with two equivalent Te(2)U4 tetrahedra, edges with two equivalent Te(3)U4 tetrahedra,  an edgeedge with one Te(11)U5 trigonal bipyramid,  an edgeedge with one Te(12)U5 trigonal bipyramid, edges with two equivalent Te(6)U5 trigonal bipyramids, and edges with two equivalent Te(8)U5 trigonal bipyramids. In the ninth Te site, Te(9) is bonded in a 5-coordinate geometry to one U(5), two equivalent U(2), and two equivalent U(7) atoms. In the tenth Te site, Te(10) is bonded in a 5-coordinate geometry to one U(4), two equivalent U(1), and two equivalent U(7) atoms. In the eleventh Te site, Te(11) is bonded to one U(5), two equivalent U(1), and two equivalent U(3) atoms to form distorted TeU5 trigonal bipyramids that share corners with two equivalent Te(3)U4 tetrahedra, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids, corners with two equivalent Te(7)U5 trigonal bipyramids, corners with two equivalent Te(8)U5 trigonal bipyramids, edges with two equivalent Te(2)U4 tetrahedra,  an edgeedge with one Te(12)U5 trigonal bipyramid,  an edgeedge with one Te(7)U5 trigonal bipyramid,  an edgeedge with one Te(8)U5 trigonal bipyramid, edges with two equivalent Te(11)U5 trigonal bipyramids, and edges with two equivalent Te(4)U5 trigonal bipyramids. In the twelfth Te site, Te(12) is bonded to one U(4), two equivalent U(2), and two equivalent U(3) atoms to form distorted TeU5 trigonal bipyramids that share corners with two equivalent Te(2)U4 tetrahedra, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, corners with two equivalent Te(7)U5 trigonal bipyramids, corners with two equivalent Te(8)U5 trigonal bipyramids, edges with two equivalent Te(1)U4 tetrahedra,  an edgeedge with one Te(11)U5 trigonal bipyramid,  an edgeedge with one Te(7)U5 trigonal bipyramid,  an edgeedge with one Te(8)U5 trigonal bipyramid, edges with two equivalent Te(12)U5 trigonal bipyramids, and edges with two equivalent Te(6)U5 trigonal bipyramids.
U7Te12 crystallizes in the monoclinic Pm space group. There are seven inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to one Te(3), one Te(4), two equivalent Te(10), two equivalent Te(11), and two equivalent Te(7) atoms. The U(1)-Te(3) bond length is 3.14 Å. The U(1)-Te(4) bond length is 3.38 Å. Both U(1)-Te(10) bond lengths are 3.22 Å. Both U(1)-Te(11) bond lengths are 3.21 Å. Both U(1)-Te(7) bond lengths are 3.34 Å. In the second U site, U(2) is bonded in a 8-coordinate geometry to one Te(1), one Te(5), two equivalent Te(12), two equivalent Te(7), and two equivalent Te(9) atoms. The U(2)-Te(1) bond length is 3.12 Å. The U(2)-Te(5) bond length is 3.35 Å. Both U(2)-Te(12) bond lengths are 3.36 Å. Both U(2)-Te(7) bond lengths are 3.21 Å. Both U(2)-Te(9) bond lengths are 3.22 Å. In the third U site, U(3) is bonded in a 8-coordinate geometry to one Te(2), one Te(6), two equivalent Te(11), two equivalent Te(12), and two equivalent Te(8) atoms. The U(3)-Te(2) bond length is 3.13 Å. The U(3)-Te(6) bond length is 3.37 Å. Both U(3)-Te(11) bond lengths are 3.35 Å. Both U(3)-Te(12) bond lengths are 3.22 Å. Both U(3)-Te(8) bond lengths are 3.23 Å. In the fourth U site, U(4) is bonded in a 8-coordinate geometry to one Te(10), one Te(12), two equivalent Te(1), two equivalent Te(4), and two equivalent Te(6) atoms. The U(4)-Te(10) bond length is 3.36 Å. The U(4)-Te(12) bond length is 3.36 Å. Both U(4)-Te(1) bond lengths are 3.06 Å. Both U(4)-Te(4) bond lengths are 3.25 Å. Both U(4)-Te(6) bond lengths are 3.24 Å. In the fifth U site, U(5) is bonded in a 8-coordinate geometry to one Te(11), one Te(9), two equivalent Te(2), two equivalent Te(4), and two equivalent Te(5) atoms. The U(5)-Te(11) bond length is 3.37 Å. The U(5)-Te(9) bond length is 3.38 Å. Both U(5)-Te(2) bond lengths are 3.05 Å. Both U(5)-Te(4) bond lengths are 3.22 Å. Both U(5)-Te(5) bond lengths are 3.24 Å. In the sixth U site, U(6) is bonded in a 8-coordinate geometry to one Te(7), one Te(8), two equivalent Te(3), two equivalent Te(5), and two equivalent Te(6) atoms. The U(6)-Te(7) bond length is 3.41 Å. The U(6)-Te(8) bond length is 3.37 Å. Both U(6)-Te(3) bond lengths are 3.06 Å. Both U(6)-Te(5) bond lengths are 3.23 Å. Both U(6)-Te(6) bond lengths are 3.24 Å. In the seventh U site, U(7) is bonded in a 9-coordinate geometry to one Te(1), one Te(2), one Te(3), two equivalent Te(10), two equivalent Te(8), and two equivalent Te(9) atoms. The U(7)-Te(1) bond length is 3.15 Å. The U(7)-Te(2) bond length is 3.19 Å. The U(7)-Te(3) bond length is 3.17 Å. Both U(7)-Te(10) bond lengths are 3.46 Å. Both U(7)-Te(8) bond lengths are 3.43 Å. Both U(7)-Te(9) bond lengths are 3.43 Å. There are twelve inequivalent Te sites. In the first Te site, Te(1) is bonded to one U(2), one U(7), and two equivalent U(4) atoms to form TeU4 tetrahedra that share  a cornercorner with one Te(2)U4 tetrahedra,  a cornercorner with one Te(3)U4 tetrahedra, corners with two equivalent Te(1)U4 tetrahedra,  a cornercorner with one Te(5)U5 trigonal bipyramid, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids, corners with two equivalent Te(7)U5 trigonal bipyramids, corners with two equivalent Te(8)U5 trigonal bipyramids,  an edgeedge with one Te(4)U5 trigonal bipyramid,  an edgeedge with one Te(6)U5 trigonal bipyramid, and edges with two equivalent Te(12)U5 trigonal bipyramids. In the second Te site, Te(2) is bonded to one U(3), one U(7), and two equivalent U(5) atoms to form distorted TeU4 tetrahedra that share  a cornercorner with one Te(1)U4 tetrahedra,  a cornercorner with one Te(3)U4 tetrahedra, corners with two equivalent Te(2)U4 tetrahedra,  a cornercorner with one Te(6)U5 trigonal bipyramid, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids,  an edgeedge with one Te(4)U5 trigonal bipyramid,  an edgeedge with one Te(5)U5 trigonal bipyramid, edges with two equivalent Te(11)U5 trigonal bipyramids, and edges with two equivalent Te(8)U5 trigonal bipyramids. In the third Te site, Te(3) is bonded to one U(1), one U(7), and two equivalent U(6) atoms to form distorted TeU4 tetrahedra that share  a cornercorner with one Te(1)U4 tetrahedra,  a cornercorner with one Te(2)U4 tetrahedra, corners with two equivalent Te(3)U4 tetrahedra,  a cornercorner with one Te(4)U5 trigonal bipyramid, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids,  an edgeedge with one Te(5)U5 trigonal bipyramid,  an edgeedge with one Te(6)U5 trigonal bipyramid, edges with two equivalent Te(7)U5 trigonal bipyramids, and edges with two equivalent Te(8)U5 trigonal bipyramids. In the fourth Te site, Te(4) is bonded to one U(1), two equivalent U(4), and two equivalent U(5) atoms to form distorted TeU5 trigonal bipyramids that share  a cornercorner with one Te(3)U4 tetrahedra, corners with two equivalent Te(1)U4 tetrahedra, corners with two equivalent Te(2)U4 tetrahedra, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids, corners with two equivalent Te(7)U5 trigonal bipyramids,  an edgeedge with one Te(1)U4 tetrahedra,  an edgeedge with one Te(2)U4 tetrahedra,  an edgeedge with one Te(5)U5 trigonal bipyramid,  an edgeedge with one Te(6)U5 trigonal bipyramid, edges with two equivalent Te(11)U5 trigonal bipyramids, and edges with two equivalent Te(4)U5 trigonal bipyramids. In the fifth Te site, Te(5) is bonded to one U(2), two equivalent U(5), and two equivalent U(6) atoms to form distorted TeU5 trigonal bipyramids that share  a cornercorner with one Te(1)U4 tetrahedra, corners with two equivalent Te(2)U4 tetrahedra, corners with two equivalent Te(3)U4 tetrahedra, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids, corners with two equivalent Te(8)U5 trigonal bipyramids,  an edgeedge with one Te(2)U4 tetrahedra,  an edgeedge with one Te(3)U4 tetrahedra,  an edgeedge with one Te(4)U5 trigonal bipyramid,  an edgeedge with one Te(6)U5 trigonal bipyramid, edges with two equivalent Te(5)U5 trigonal bipyramids, and edges with two equivalent Te(7)U5 trigonal bipyramids. In the sixth Te site, Te(6) is bonded to one U(3), two equivalent U(4), and two equivalent U(6) atoms to form distorted TeU5 trigonal bipyramids that share  a cornercorner with one Te(2)U4 tetrahedra, corners with two equivalent Te(1)U4 tetrahedra, corners with two equivalent Te(3)U4 tetrahedra, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, corners with two equivalent Te(7)U5 trigonal bipyramids,  an edgeedge with one Te(1)U4 tetrahedra,  an edgeedge with one Te(3)U4 tetrahedra,  an edgeedge with one Te(4)U5 trigonal bipyramid,  an edgeedge with one Te(5)U5 trigonal bipyramid, edges with two equivalent Te(12)U5 trigonal bipyramids, edges with two equivalent Te(6)U5 trigonal bipyramids, and edges with two equivalent Te(8)U5 trigonal bipyramids. In the seventh Te site, Te(7) is bonded to one U(6), two equivalent U(1), and two equivalent U(2) atoms to form distorted TeU5 trigonal bipyramids that share corners with two equivalent Te(1)U4 tetrahedra,  a cornercorner with one Te(8)U5 trigonal bipyramid, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids, edges with two equivalent Te(3)U4 tetrahedra,  an edgeedge with one Te(11)U5 trigonal bipyramid,  an edgeedge with one Te(12)U5 trigonal bipyramid, edges with two equivalent Te(5)U5 trigonal bipyramids, and edges with two equivalent Te(7)U5 trigonal bipyramids. In the eighth Te site, Te(8) is bonded to one U(6), two equivalent U(3), and two equivalent U(7) atoms to form distorted TeU5 trigonal bipyramids that share corners with two equivalent Te(1)U4 tetrahedra,  a cornercorner with one Te(7)U5 trigonal bipyramid, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, edges with two equivalent Te(2)U4 tetrahedra, edges with two equivalent Te(3)U4 tetrahedra,  an edgeedge with one Te(11)U5 trigonal bipyramid,  an edgeedge with one Te(12)U5 trigonal bipyramid, edges with two equivalent Te(6)U5 trigonal bipyramids, and edges with two equivalent Te(8)U5 trigonal bipyramids. In the ninth Te site, Te(9) is bonded in a 5-coordinate geometry to one U(5), two equivalent U(2), and two equivalent U(7) atoms. In the tenth Te site, Te(10) is bonded in a 5-coordinate geometry to one U(4), two equivalent U(1), and two equivalent U(7) atoms. In the eleventh Te site, Te(11) is bonded to one U(5), two equivalent U(1), and two equivalent U(3) atoms to form distorted TeU5 trigonal bipyramids that share corners with two equivalent Te(3)U4 tetrahedra, corners with two equivalent Te(12)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, corners with two equivalent Te(6)U5 trigonal bipyramids, corners with two equivalent Te(7)U5 trigonal bipyramids, corners with two equivalent Te(8)U5 trigonal bipyramids, edges with two equivalent Te(2)U4 tetrahedra,  an edgeedge with one Te(12)U5 trigonal bipyramid,  an edgeedge with one Te(7)U5 trigonal bipyramid,  an edgeedge with one Te(8)U5 trigonal bipyramid, edges with two equivalent Te(11)U5 trigonal bipyramids, and edges with two equivalent Te(4)U5 trigonal bipyramids. In the twelfth Te site, Te(12) is bonded to one U(4), two equivalent U(2), and two equivalent U(3) atoms to form distorted TeU5 trigonal bipyramids that share corners with two equivalent Te(2)U4 tetrahedra, corners with two equivalent Te(11)U5 trigonal bipyramids, corners with two equivalent Te(4)U5 trigonal bipyramids, corners with two equivalent Te(5)U5 trigonal bipyramids, corners with two equivalent Te(7)U5 trigonal bipyramids, corners with two equivalent Te(8)U5 trigonal bipyramids, edges with two equivalent Te(1)U4 tetrahedra,  an edgeedge with one Te(11)U5 trigonal bipyramid,  an edgeedge with one Te(7)U5 trigonal bipyramid,  an edgeedge with one Te(8)U5 trigonal bipyramid, edges with two equivalent Te(12)U5 trigonal bipyramids, and edges with two equivalent Te(6)U5 trigonal bipyramids.