Th4Ce3O14 is Fluorite-derived structured and crystallizes in the monoclinic C2/m space group. There are two inequivalent Th sites. In the first Th site, Th(1) is bonded in a body-centered cubic geometry to two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. In the second Th site, Th(2) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) 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 four inequivalent O sites. In the first O site, O(1) is bonded to one Th(2), two equivalent Th(1), and one Ce(1) atom to form OCeTh3 tetrahedra that share corners with two equivalent O(1)CeTh3 tetrahedra, corners with four equivalent O(2)Ce2Th2 tetrahedra, corners with four equivalent O(4)Ce2Th2 tetrahedra, corners with six equivalent O(3)Ce2Th2 tetrahedra,  an edgeedge with one O(2)Ce2Th2 tetrahedra,  an edgeedge with one O(3)Ce2Th2 tetrahedra,  an edgeedge with one O(4)Ce2Th2 tetrahedra, and edges with three equivalent O(1)CeTh3 tetrahedra. In the second O site, O(2) is bonded to two equivalent Th(2), one Ce(1), and one Ce(2) atom to form OCe2Th2 tetrahedra that share corners with two equivalent O(4)Ce2Th2 tetrahedra, corners with four equivalent O(2)Ce2Th2 tetrahedra, corners with four equivalent O(1)CeTh3 tetrahedra, corners with six equivalent O(3)Ce2Th2 tetrahedra,  an edgeedge with one O(1)CeTh3 tetrahedra, edges with two equivalent O(3)Ce2Th2 tetrahedra, and edges with three equivalent O(2)Ce2Th2 tetrahedra. In the third O site, O(3) is bonded to one Th(1), one Th(2), one Ce(1), and one Ce(2) atom to form OCe2Th2 tetrahedra that share corners with two equivalent O(3)Ce2Th2 tetrahedra, corners with two equivalent O(4)Ce2Th2 tetrahedra, corners with six equivalent O(2)Ce2Th2 tetrahedra, corners with six equivalent O(1)CeTh3 tetrahedra,  an edgeedge with one O(4)Ce2Th2 tetrahedra,  an edgeedge with one O(1)CeTh3 tetrahedra, edges with two equivalent O(2)Ce2Th2 tetrahedra, and edges with two equivalent O(3)Ce2Th2 tetrahedra. In the fourth O site, O(4) is bonded to two equivalent Th(1) and two equivalent Ce(1) atoms to form OCe2Th2 tetrahedra that share corners with four equivalent O(2)Ce2Th2 tetrahedra, corners with four equivalent O(3)Ce2Th2 tetrahedra, corners with eight equivalent O(1)CeTh3 tetrahedra, edges with two equivalent O(3)Ce2Th2 tetrahedra, edges with two equivalent O(4)Ce2Th2 tetrahedra, and edges with two equivalent O(1)CeTh3 tetrahedra.
Th4Ce3O14 is Fluorite-derived structured and crystallizes in the monoclinic C2/m space group. There are two inequivalent Th sites. In the first Th site, Th(1) is bonded in a body-centered cubic geometry to two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. Both Th(1)-O(3) bond lengths are 2.41 Å. Both Th(1)-O(4) bond lengths are 2.40 Å. All Th(1)-O(1) bond lengths are 2.41 Å. In the second Th site, Th(2) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(3), and four equivalent O(2) atoms. Both Th(2)-O(1) bond lengths are 2.41 Å. Both Th(2)-O(3) bond lengths are 2.41 Å. There are two shorter (2.40 Å) and two longer (2.41 Å) Th(2)-O(2) bond lengths. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Both Ce(1)-O(1) bond lengths are 2.38 Å. Both Ce(1)-O(2) bond lengths are 2.38 Å. Both Ce(1)-O(3) bond lengths are 2.37 Å. Both Ce(1)-O(4) bond lengths are 2.38 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 2.38 Å. All Ce(2)-O(3) bond lengths are 2.38 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Th(2), two equivalent Th(1), and one Ce(1) atom to form OCeTh3 tetrahedra that share corners with two equivalent O(1)CeTh3 tetrahedra, corners with four equivalent O(2)Ce2Th2 tetrahedra, corners with four equivalent O(4)Ce2Th2 tetrahedra, corners with six equivalent O(3)Ce2Th2 tetrahedra,  an edgeedge with one O(2)Ce2Th2 tetrahedra,  an edgeedge with one O(3)Ce2Th2 tetrahedra,  an edgeedge with one O(4)Ce2Th2 tetrahedra, and edges with three equivalent O(1)CeTh3 tetrahedra. In the second O site, O(2) is bonded to two equivalent Th(2), one Ce(1), and one Ce(2) atom to form OCe2Th2 tetrahedra that share corners with two equivalent O(4)Ce2Th2 tetrahedra, corners with four equivalent O(2)Ce2Th2 tetrahedra, corners with four equivalent O(1)CeTh3 tetrahedra, corners with six equivalent O(3)Ce2Th2 tetrahedra,  an edgeedge with one O(1)CeTh3 tetrahedra, edges with two equivalent O(3)Ce2Th2 tetrahedra, and edges with three equivalent O(2)Ce2Th2 tetrahedra. In the third O site, O(3) is bonded to one Th(1), one Th(2), one Ce(1), and one Ce(2) atom to form OCe2Th2 tetrahedra that share corners with two equivalent O(3)Ce2Th2 tetrahedra, corners with two equivalent O(4)Ce2Th2 tetrahedra, corners with six equivalent O(2)Ce2Th2 tetrahedra, corners with six equivalent O(1)CeTh3 tetrahedra,  an edgeedge with one O(4)Ce2Th2 tetrahedra,  an edgeedge with one O(1)CeTh3 tetrahedra, edges with two equivalent O(2)Ce2Th2 tetrahedra, and edges with two equivalent O(3)Ce2Th2 tetrahedra. In the fourth O site, O(4) is bonded to two equivalent Th(1) and two equivalent Ce(1) atoms to form OCe2Th2 tetrahedra that share corners with four equivalent O(2)Ce2Th2 tetrahedra, corners with four equivalent O(3)Ce2Th2 tetrahedra, corners with eight equivalent O(1)CeTh3 tetrahedra, edges with two equivalent O(3)Ce2Th2 tetrahedra, edges with two equivalent O(4)Ce2Th2 tetrahedra, and edges with two equivalent O(1)CeTh3 tetrahedra.