UY4O3S5 crystallizes in the orthorhombic Pmn2_1 space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 4-coordinate geometry to two equivalent S(1), two equivalent S(10), one O(1), one O(5), and two equivalent O(3) atoms. In the second U site, U(2) is bonded in a 7-coordinate geometry to one S(6), one S(7), two equivalent S(8), one O(4), and two equivalent O(6) atoms. There are eight inequivalent Y sites. In the first Y site, Y(1) is bonded in a 8-coordinate geometry to two equivalent S(1), two equivalent S(7), two equivalent S(9), one O(1), and one O(6) atom. In the second Y site, Y(2) is bonded in a 8-coordinate geometry to two equivalent S(10), two equivalent S(2), two equivalent S(8), one O(2), and one O(5) atom. In the third Y site, Y(3) is bonded to one S(1), one S(3), two equivalent S(4), and two equivalent S(5) atoms to form edge-sharing YS6 octahedra. In the fourth Y site, Y(4) is bonded to one S(2), one S(4), two equivalent S(3), and two equivalent S(6) atoms to form edge-sharing YS6 octahedra. In the fifth Y site, Y(5) is bonded in a 7-coordinate geometry to one S(5), one S(9), two equivalent S(3), one O(3), and two equivalent O(1) atoms. In the sixth Y site, Y(6) is bonded in a 7-coordinate geometry to one S(10), one S(6), two equivalent S(4), one O(4), and two equivalent O(2) atoms. In the seventh Y site, Y(7) is bonded in a 8-coordinate geometry to two equivalent S(2), two equivalent S(9), one O(2), one O(6), and two equivalent O(4) atoms. In the eighth Y site, Y(8) is bonded in a 7-coordinate geometry to one S(5), one S(8), two equivalent S(7), one O(3), and two equivalent O(5) atoms. There are ten inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent U(1), one Y(3), and two equivalent Y(1) atoms. In the second S site, S(2) is bonded in a 5-coordinate geometry to one Y(4), two equivalent Y(2), and two equivalent Y(7) atoms. In the third S site, S(3) is bonded to one Y(3), two equivalent Y(4), and two equivalent Y(5) atoms to form SY5 square pyramids that share corners with two equivalent O(3)Y2U2 tetrahedra, corners with two equivalent O(1)Y3U tetrahedra, corners with two equivalent S(6)Y3U trigonal pyramids, edges with two equivalent S(3)Y5 square pyramids, edges with two equivalent S(4)Y5 square pyramids,  an edgeedge with one O(1)Y3U tetrahedra,  an edgeedge with one S(6)Y3U trigonal pyramid, and edges with two equivalent S(5)Y4 trigonal pyramids. In the fourth S site, S(4) is bonded to one Y(4), two equivalent Y(3), and two equivalent Y(6) atoms to form SY5 square pyramids that share corners with two equivalent O(4)Y3U tetrahedra, corners with two equivalent O(2)Y4 tetrahedra, corners with two equivalent S(10)Y3U2 trigonal bipyramids, corners with two equivalent S(5)Y4 trigonal pyramids, edges with two equivalent S(3)Y5 square pyramids, edges with two equivalent S(4)Y5 square pyramids,  an edgeedge with one O(2)Y4 tetrahedra,  an edgeedge with one S(5)Y4 trigonal pyramid, and edges with two equivalent S(6)Y3U trigonal pyramids. In the fifth S site, S(5) is bonded to one Y(5), one Y(8), and two equivalent Y(3) atoms to form distorted SY4 trigonal pyramids that share  a cornercorner with one S(8)Y3U2 square pyramid, corners with two equivalent S(7)Y4U square pyramids, corners with two equivalent S(4)Y5 square pyramids, corners with two equivalent O(1)Y3U tetrahedra, corners with two equivalent O(5)Y3U tetrahedra, corners with two equivalent S(5)Y4 trigonal pyramids,  an edgeedge with one S(4)Y5 square pyramid, edges with two equivalent S(3)Y5 square pyramids, and  an edgeedge with one O(3)Y2U2 tetrahedra. In the sixth S site, S(6) is bonded to one U(2), one Y(6), and two equivalent Y(4) atoms to form distorted SY3U trigonal pyramids that share  a cornercorner with one S(7)Y4U square pyramid, corners with two equivalent S(8)Y3U2 square pyramids, corners with two equivalent S(3)Y5 square pyramids, corners with two equivalent O(6)Y2U2 tetrahedra, corners with two equivalent O(2)Y4 tetrahedra,  a cornercorner with one S(10)Y3U2 trigonal bipyramid, corners with two equivalent S(6)Y3U trigonal pyramids,  an edgeedge with one S(3)Y5 square pyramid, edges with two equivalent S(4)Y5 square pyramids, and  an edgeedge with one O(4)Y3U tetrahedra. In the seventh S site, S(7) is bonded to one U(2), two equivalent Y(1), and two equivalent Y(8) atoms to form SY4U square pyramids that share  a cornercorner with one O(4)Y3U tetrahedra, corners with two equivalent O(3)Y2U2 tetrahedra, corners with two equivalent O(1)Y3U tetrahedra, corners with two equivalent O(5)Y3U tetrahedra,  a cornercorner with one S(6)Y3U trigonal pyramid, corners with two equivalent S(5)Y4 trigonal pyramids, edges with two equivalent S(8)Y3U2 square pyramids, edges with two equivalent S(7)Y4U square pyramids,  an edgeedge with one O(5)Y3U tetrahedra, and edges with two equivalent O(6)Y2U2 tetrahedra. In the eighth S site, S(8) is bonded to two equivalent U(2), one Y(8), and two equivalent Y(2) atoms to form SY3U2 square pyramids that share  a cornercorner with one O(3)Y2U2 tetrahedra, corners with two equivalent O(6)Y2U2 tetrahedra, corners with two equivalent O(4)Y3U tetrahedra, corners with two equivalent O(2)Y4 tetrahedra, corners with two equivalent S(10)Y3U2 trigonal bipyramids,  a cornercorner with one S(5)Y4 trigonal pyramid, corners with two equivalent S(6)Y3U trigonal pyramids, edges with two equivalent S(8)Y3U2 square pyramids, edges with two equivalent S(7)Y4U square pyramids,  an edgeedge with one O(6)Y2U2 tetrahedra, edges with two equivalent O(5)Y3U tetrahedra, and  an edgeedge with one S(10)Y3U2 trigonal bipyramid. In the ninth S site, S(9) is bonded in a 5-coordinate geometry to one Y(5), two equivalent Y(1), and two equivalent Y(7) atoms. In the tenth S site, S(10) is bonded to two equivalent U(1), one Y(6), and two equivalent Y(2) atoms to form distorted SY3U2 trigonal bipyramids that share corners with two equivalent S(8)Y3U2 square pyramids, corners with two equivalent S(4)Y5 square pyramids,  a cornercorner with one O(4)Y3U tetrahedra, corners with two equivalent O(3)Y2U2 tetrahedra, corners with two equivalent O(1)Y3U tetrahedra,  a cornercorner with one S(6)Y3U trigonal pyramid,  an edgeedge with one S(8)Y3U2 square pyramid,  an edgeedge with one O(3)Y2U2 tetrahedra, edges with two equivalent O(5)Y3U tetrahedra, edges with two equivalent O(2)Y4 tetrahedra, and edges with two equivalent S(10)Y3U2 trigonal bipyramids. There are six inequivalent O sites. In the first O site, O(1) is bonded to one U(1), one Y(1), and two equivalent Y(5) atoms to form OY3U tetrahedra that share corners with two equivalent S(7)Y4U square pyramids, corners with two equivalent S(3)Y5 square pyramids,  a cornercorner with one O(6)Y2U2 tetrahedra,  a cornercorner with one O(5)Y3U tetrahedra, corners with two equivalent O(1)Y3U tetrahedra, corners with two equivalent S(10)Y3U2 trigonal bipyramids, corners with two equivalent S(5)Y4 trigonal pyramids,  an edgeedge with one S(3)Y5 square pyramid, and edges with two equivalent O(3)Y2U2 tetrahedra. In the second O site, O(2) is bonded to one Y(2), one Y(7), and two equivalent Y(6) atoms to form OY4 tetrahedra that share corners with two equivalent S(8)Y3U2 square pyramids, corners with two equivalent S(4)Y5 square pyramids,  a cornercorner with one O(6)Y2U2 tetrahedra,  a cornercorner with one O(5)Y3U tetrahedra, corners with two equivalent O(2)Y4 tetrahedra, corners with two equivalent S(6)Y3U trigonal pyramids,  an edgeedge with one S(4)Y5 square pyramid, edges with two equivalent O(4)Y3U tetrahedra, and edges with two equivalent S(10)Y3U2 trigonal bipyramids. In the third O site, O(3) is bonded to two equivalent U(1), one Y(5), and one Y(8) atom to form OY2U2 tetrahedra that share  a cornercorner with one S(8)Y3U2 square pyramid, corners with two equivalent S(7)Y4U square pyramids, corners with two equivalent S(3)Y5 square pyramids, corners with two equivalent O(3)Y2U2 tetrahedra, corners with two equivalent S(10)Y3U2 trigonal bipyramids, edges with two equivalent O(1)Y3U tetrahedra, edges with two equivalent O(5)Y3U tetrahedra,  an edgeedge with one S(10)Y3U2 trigonal bipyramid, and  an edgeedge with one S(5)Y4 trigonal pyramid. In the fourth O site, O(4) is bonded to one U(2), one Y(6), and two equivalent Y(7) atoms to form OY3U tetrahedra that share  a cornercorner with one S(7)Y4U square pyramid, corners with two equivalent S(8)Y3U2 square pyramids, corners with two equivalent S(4)Y5 square pyramids, corners with two equivalent O(4)Y3U tetrahedra,  a cornercorner with one S(10)Y3U2 trigonal bipyramid, edges with two equivalent O(6)Y2U2 tetrahedra, edges with two equivalent O(2)Y4 tetrahedra, and  an edgeedge with one S(6)Y3U trigonal pyramid. In the fifth O site, O(5) is bonded to one U(1), one Y(2), and two equivalent Y(8) atoms to form OY3U tetrahedra that share corners with two equivalent S(7)Y4U square pyramids,  a cornercorner with one O(1)Y3U tetrahedra,  a cornercorner with one O(2)Y4 tetrahedra, corners with two equivalent O(5)Y3U tetrahedra, corners with two equivalent S(5)Y4 trigonal pyramids,  an edgeedge with one S(7)Y4U square pyramid, edges with two equivalent S(8)Y3U2 square pyramids, edges with two equivalent O(3)Y2U2 tetrahedra, and edges with two equivalent S(10)Y3U2 trigonal bipyramids. In the sixth O site, O(6) is bonded to two equivalent U(2), one Y(1), and one Y(7) atom to form OY2U2 tetrahedra that share corners with two equivalent S(8)Y3U2 square pyramids,  a cornercorner with one O(1)Y3U tetrahedra,  a cornercorner with one O(2)Y4 tetrahedra, corners with two equivalent O(6)Y2U2 tetrahedra, corners with two equivalent S(6)Y3U trigonal pyramids,  an edgeedge with one S(8)Y3U2 square pyramid, edges with two equivalent S(7)Y4U square pyramids, and edges with two equivalent O(4)Y3U tetrahedra.
UY4O3S5 crystallizes in the orthorhombic Pmn2_1 space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 4-coordinate geometry to two equivalent S(1), two equivalent S(10), one O(1), one O(5), and two equivalent O(3) atoms. Both U(1)-S(1) bond lengths are 2.99 Å. Both U(1)-S(10) bond lengths are 2.98 Å. The U(1)-O(1) bond length is 2.30 Å. The U(1)-O(5) bond length is 2.21 Å. Both U(1)-O(3) bond lengths are 2.28 Å. In the second U site, U(2) is bonded in a 7-coordinate geometry to one S(6), one S(7), two equivalent S(8), one O(4), and two equivalent O(6) atoms. The U(2)-S(6) bond length is 2.82 Å. The U(2)-S(7) bond length is 2.72 Å. Both U(2)-S(8) bond lengths are 2.93 Å. The U(2)-O(4) bond length is 2.20 Å. Both U(2)-O(6) bond lengths are 2.19 Å. There are eight inequivalent Y sites. In the first Y site, Y(1) is bonded in a 8-coordinate geometry to two equivalent S(1), two equivalent S(7), two equivalent S(9), one O(1), and one O(6) atom. Both Y(1)-S(1) bond lengths are 2.97 Å. Both Y(1)-S(7) bond lengths are 2.88 Å. Both Y(1)-S(9) bond lengths are 2.78 Å. The Y(1)-O(1) bond length is 2.41 Å. The Y(1)-O(6) bond length is 2.71 Å. In the second Y site, Y(2) is bonded in a 8-coordinate geometry to two equivalent S(10), two equivalent S(2), two equivalent S(8), one O(2), and one O(5) atom. Both Y(2)-S(10) bond lengths are 2.81 Å. Both Y(2)-S(2) bond lengths are 2.99 Å. Both Y(2)-S(8) bond lengths are 2.90 Å. The Y(2)-O(2) bond length is 2.39 Å. The Y(2)-O(5) bond length is 2.70 Å. In the third Y site, Y(3) is bonded to one S(1), one S(3), two equivalent S(4), and two equivalent S(5) atoms to form edge-sharing YS6 octahedra. The Y(3)-S(1) bond length is 2.74 Å. The Y(3)-S(3) bond length is 2.87 Å. Both Y(3)-S(4) bond lengths are 2.73 Å. Both Y(3)-S(5) bond lengths are 2.67 Å. In the fourth Y site, Y(4) is bonded to one S(2), one S(4), two equivalent S(3), and two equivalent S(6) atoms to form edge-sharing YS6 octahedra. The Y(4)-S(2) bond length is 2.72 Å. The Y(4)-S(4) bond length is 2.88 Å. Both Y(4)-S(3) bond lengths are 2.75 Å. Both Y(4)-S(6) bond lengths are 2.65 Å. In the fifth Y site, Y(5) is bonded in a 7-coordinate geometry to one S(5), one S(9), two equivalent S(3), one O(3), and two equivalent O(1) atoms. The Y(5)-S(5) bond length is 2.78 Å. The Y(5)-S(9) bond length is 2.73 Å. Both Y(5)-S(3) bond lengths are 2.94 Å. The Y(5)-O(3) bond length is 2.28 Å. Both Y(5)-O(1) bond lengths are 2.29 Å. In the sixth Y site, Y(6) is bonded in a 7-coordinate geometry to one S(10), one S(6), two equivalent S(4), one O(4), and two equivalent O(2) atoms. The Y(6)-S(10) bond length is 2.73 Å. The Y(6)-S(6) bond length is 2.80 Å. Both Y(6)-S(4) bond lengths are 2.98 Å. The Y(6)-O(4) bond length is 2.27 Å. Both Y(6)-O(2) bond lengths are 2.27 Å. In the seventh Y site, Y(7) is bonded in a 8-coordinate geometry to two equivalent S(2), two equivalent S(9), one O(2), one O(6), and two equivalent O(4) atoms. Both Y(7)-S(2) bond lengths are 2.91 Å. Both Y(7)-S(9) bond lengths are 3.03 Å. The Y(7)-O(2) bond length is 2.28 Å. The Y(7)-O(6) bond length is 2.39 Å. Both Y(7)-O(4) bond lengths are 2.33 Å. In the eighth Y site, Y(8) is bonded in a 7-coordinate geometry to one S(5), one S(8), two equivalent S(7), one O(3), and two equivalent O(5) atoms. The Y(8)-S(5) bond length is 2.77 Å. The Y(8)-S(8) bond length is 2.73 Å. Both Y(8)-S(7) bond lengths are 2.92 Å. The Y(8)-O(3) bond length is 2.31 Å. Both Y(8)-O(5) bond lengths are 2.25 Å. There are ten inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent U(1), one Y(3), and two equivalent Y(1) atoms. In the second S site, S(2) is bonded in a 5-coordinate geometry to one Y(4), two equivalent Y(2), and two equivalent Y(7) atoms. In the third S site, S(3) is bonded to one Y(3), two equivalent Y(4), and two equivalent Y(5) atoms to form SY5 square pyramids that share corners with two equivalent O(3)Y2U2 tetrahedra, corners with two equivalent O(1)Y3U tetrahedra, corners with two equivalent S(6)Y3U trigonal pyramids, edges with two equivalent S(3)Y5 square pyramids, edges with two equivalent S(4)Y5 square pyramids,  an edgeedge with one O(1)Y3U tetrahedra,  an edgeedge with one S(6)Y3U trigonal pyramid, and edges with two equivalent S(5)Y4 trigonal pyramids. In the fourth S site, S(4) is bonded to one Y(4), two equivalent Y(3), and two equivalent Y(6) atoms to form SY5 square pyramids that share corners with two equivalent O(4)Y3U tetrahedra, corners with two equivalent O(2)Y4 tetrahedra, corners with two equivalent S(10)Y3U2 trigonal bipyramids, corners with two equivalent S(5)Y4 trigonal pyramids, edges with two equivalent S(3)Y5 square pyramids, edges with two equivalent S(4)Y5 square pyramids,  an edgeedge with one O(2)Y4 tetrahedra,  an edgeedge with one S(5)Y4 trigonal pyramid, and edges with two equivalent S(6)Y3U trigonal pyramids. In the fifth S site, S(5) is bonded to one Y(5), one Y(8), and two equivalent Y(3) atoms to form distorted SY4 trigonal pyramids that share  a cornercorner with one S(8)Y3U2 square pyramid, corners with two equivalent S(7)Y4U square pyramids, corners with two equivalent S(4)Y5 square pyramids, corners with two equivalent O(1)Y3U tetrahedra, corners with two equivalent O(5)Y3U tetrahedra, corners with two equivalent S(5)Y4 trigonal pyramids,  an edgeedge with one S(4)Y5 square pyramid, edges with two equivalent S(3)Y5 square pyramids, and  an edgeedge with one O(3)Y2U2 tetrahedra. In the sixth S site, S(6) is bonded to one U(2), one Y(6), and two equivalent Y(4) atoms to form distorted SY3U trigonal pyramids that share  a cornercorner with one S(7)Y4U square pyramid, corners with two equivalent S(8)Y3U2 square pyramids, corners with two equivalent S(3)Y5 square pyramids, corners with two equivalent O(6)Y2U2 tetrahedra, corners with two equivalent O(2)Y4 tetrahedra,  a cornercorner with one S(10)Y3U2 trigonal bipyramid, corners with two equivalent S(6)Y3U trigonal pyramids,  an edgeedge with one S(3)Y5 square pyramid, edges with two equivalent S(4)Y5 square pyramids, and  an edgeedge with one O(4)Y3U tetrahedra. In the seventh S site, S(7) is bonded to one U(2), two equivalent Y(1), and two equivalent Y(8) atoms to form SY4U square pyramids that share  a cornercorner with one O(4)Y3U tetrahedra, corners with two equivalent O(3)Y2U2 tetrahedra, corners with two equivalent O(1)Y3U tetrahedra, corners with two equivalent O(5)Y3U tetrahedra,  a cornercorner with one S(6)Y3U trigonal pyramid, corners with two equivalent S(5)Y4 trigonal pyramids, edges with two equivalent S(8)Y3U2 square pyramids, edges with two equivalent S(7)Y4U square pyramids,  an edgeedge with one O(5)Y3U tetrahedra, and edges with two equivalent O(6)Y2U2 tetrahedra. In the eighth S site, S(8) is bonded to two equivalent U(2), one Y(8), and two equivalent Y(2) atoms to form SY3U2 square pyramids that share  a cornercorner with one O(3)Y2U2 tetrahedra, corners with two equivalent O(6)Y2U2 tetrahedra, corners with two equivalent O(4)Y3U tetrahedra, corners with two equivalent O(2)Y4 tetrahedra, corners with two equivalent S(10)Y3U2 trigonal bipyramids,  a cornercorner with one S(5)Y4 trigonal pyramid, corners with two equivalent S(6)Y3U trigonal pyramids, edges with two equivalent S(8)Y3U2 square pyramids, edges with two equivalent S(7)Y4U square pyramids,  an edgeedge with one O(6)Y2U2 tetrahedra, edges with two equivalent O(5)Y3U tetrahedra, and  an edgeedge with one S(10)Y3U2 trigonal bipyramid. In the ninth S site, S(9) is bonded in a 5-coordinate geometry to one Y(5), two equivalent Y(1), and two equivalent Y(7) atoms. In the tenth S site, S(10) is bonded to two equivalent U(1), one Y(6), and two equivalent Y(2) atoms to form distorted SY3U2 trigonal bipyramids that share corners with two equivalent S(8)Y3U2 square pyramids, corners with two equivalent S(4)Y5 square pyramids,  a cornercorner with one O(4)Y3U tetrahedra, corners with two equivalent O(3)Y2U2 tetrahedra, corners with two equivalent O(1)Y3U tetrahedra,  a cornercorner with one S(6)Y3U trigonal pyramid,  an edgeedge with one S(8)Y3U2 square pyramid,  an edgeedge with one O(3)Y2U2 tetrahedra, edges with two equivalent O(5)Y3U tetrahedra, edges with two equivalent O(2)Y4 tetrahedra, and edges with two equivalent S(10)Y3U2 trigonal bipyramids. There are six inequivalent O sites. In the first O site, O(1) is bonded to one U(1), one Y(1), and two equivalent Y(5) atoms to form OY3U tetrahedra that share corners with two equivalent S(7)Y4U square pyramids, corners with two equivalent S(3)Y5 square pyramids,  a cornercorner with one O(6)Y2U2 tetrahedra,  a cornercorner with one O(5)Y3U tetrahedra, corners with two equivalent O(1)Y3U tetrahedra, corners with two equivalent S(10)Y3U2 trigonal bipyramids, corners with two equivalent S(5)Y4 trigonal pyramids,  an edgeedge with one S(3)Y5 square pyramid, and edges with two equivalent O(3)Y2U2 tetrahedra. In the second O site, O(2) is bonded to one Y(2), one Y(7), and two equivalent Y(6) atoms to form OY4 tetrahedra that share corners with two equivalent S(8)Y3U2 square pyramids, corners with two equivalent S(4)Y5 square pyramids,  a cornercorner with one O(6)Y2U2 tetrahedra,  a cornercorner with one O(5)Y3U tetrahedra, corners with two equivalent O(2)Y4 tetrahedra, corners with two equivalent S(6)Y3U trigonal pyramids,  an edgeedge with one S(4)Y5 square pyramid, edges with two equivalent O(4)Y3U tetrahedra, and edges with two equivalent S(10)Y3U2 trigonal bipyramids. In the third O site, O(3) is bonded to two equivalent U(1), one Y(5), and one Y(8) atom to form OY2U2 tetrahedra that share  a cornercorner with one S(8)Y3U2 square pyramid, corners with two equivalent S(7)Y4U square pyramids, corners with two equivalent S(3)Y5 square pyramids, corners with two equivalent O(3)Y2U2 tetrahedra, corners with two equivalent S(10)Y3U2 trigonal bipyramids, edges with two equivalent O(1)Y3U tetrahedra, edges with two equivalent O(5)Y3U tetrahedra,  an edgeedge with one S(10)Y3U2 trigonal bipyramid, and  an edgeedge with one S(5)Y4 trigonal pyramid. In the fourth O site, O(4) is bonded to one U(2), one Y(6), and two equivalent Y(7) atoms to form OY3U tetrahedra that share  a cornercorner with one S(7)Y4U square pyramid, corners with two equivalent S(8)Y3U2 square pyramids, corners with two equivalent S(4)Y5 square pyramids, corners with two equivalent O(4)Y3U tetrahedra,  a cornercorner with one S(10)Y3U2 trigonal bipyramid, edges with two equivalent O(6)Y2U2 tetrahedra, edges with two equivalent O(2)Y4 tetrahedra, and  an edgeedge with one S(6)Y3U trigonal pyramid. In the fifth O site, O(5) is bonded to one U(1), one Y(2), and two equivalent Y(8) atoms to form OY3U tetrahedra that share corners with two equivalent S(7)Y4U square pyramids,  a cornercorner with one O(1)Y3U tetrahedra,  a cornercorner with one O(2)Y4 tetrahedra, corners with two equivalent O(5)Y3U tetrahedra, corners with two equivalent S(5)Y4 trigonal pyramids,  an edgeedge with one S(7)Y4U square pyramid, edges with two equivalent S(8)Y3U2 square pyramids, edges with two equivalent O(3)Y2U2 tetrahedra, and edges with two equivalent S(10)Y3U2 trigonal bipyramids. In the sixth O site, O(6) is bonded to two equivalent U(2), one Y(1), and one Y(7) atom to form OY2U2 tetrahedra that share corners with two equivalent S(8)Y3U2 square pyramids,  a cornercorner with one O(1)Y3U tetrahedra,  a cornercorner with one O(2)Y4 tetrahedra, corners with two equivalent O(6)Y2U2 tetrahedra, corners with two equivalent S(6)Y3U trigonal pyramids,  an edgeedge with one S(8)Y3U2 square pyramid, edges with two equivalent S(7)Y4U square pyramids, and edges with two equivalent O(4)Y3U tetrahedra.