UCe4O10 is Fluorite-derived structured and crystallizes in the tetragonal I4/mmm space group. U(1) is bonded in a body-centered cubic geometry to eight equivalent O(1) atoms. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a body-centered cubic geometry to four equivalent O(1) and four equivalent O(3) atoms. In the second Ce site, Ce(2) is bonded in a body-centered cubic geometry to four equivalent O(2) and four equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent U(1) and two equivalent Ce(1) atoms to form OCe2U2 tetrahedra that share corners with six equivalent O(3)Ce4 tetrahedra, corners with ten equivalent O(1)Ce2U2 tetrahedra,  an edgeedge with one O(3)Ce4 tetrahedra, and edges with five equivalent O(1)Ce2U2 tetrahedra. In the second O site, O(2) is bonded to four equivalent Ce(2) atoms to form a mixture of corner and edge-sharing OCe4 tetrahedra. In the third O site, O(3) is bonded to two equivalent Ce(1) and two equivalent Ce(2) atoms to form OCe4 tetrahedra that share corners with four equivalent O(3)Ce4 tetrahedra, corners with six equivalent O(1)Ce2U2 tetrahedra, corners with six equivalent O(2)Ce4 tetrahedra,  an edgeedge with one O(1)Ce2U2 tetrahedra,  an edgeedge with one O(2)Ce4 tetrahedra, and edges with four equivalent O(3)Ce4 tetrahedra.
UCe4O10 is Fluorite-derived structured and crystallizes in the tetragonal I4/mmm space group. U(1) is bonded in a body-centered cubic geometry to eight equivalent O(1) atoms. All U(1)-O(1) bond lengths are 2.31 Å. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a body-centered cubic geometry to four equivalent O(1) and four equivalent O(3) atoms. All Ce(1)-O(1) bond lengths are 2.44 Å. All Ce(1)-O(3) bond lengths are 2.32 Å. In the second Ce site, Ce(2) is bonded in a body-centered cubic geometry to four equivalent O(2) and four equivalent O(3) atoms. All Ce(2)-O(2) bond lengths are 2.35 Å. All Ce(2)-O(3) bond lengths are 2.38 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent U(1) and two equivalent Ce(1) atoms to form OCe2U2 tetrahedra that share corners with six equivalent O(3)Ce4 tetrahedra, corners with ten equivalent O(1)Ce2U2 tetrahedra,  an edgeedge with one O(3)Ce4 tetrahedra, and edges with five equivalent O(1)Ce2U2 tetrahedra. In the second O site, O(2) is bonded to four equivalent Ce(2) atoms to form a mixture of corner and edge-sharing OCe4 tetrahedra. In the third O site, O(3) is bonded to two equivalent Ce(1) and two equivalent Ce(2) atoms to form OCe4 tetrahedra that share corners with four equivalent O(3)Ce4 tetrahedra, corners with six equivalent O(1)Ce2U2 tetrahedra, corners with six equivalent O(2)Ce4 tetrahedra,  an edgeedge with one O(1)Ce2U2 tetrahedra,  an edgeedge with one O(2)Ce4 tetrahedra, and edges with four equivalent O(3)Ce4 tetrahedra.