Ce2WO6 crystallizes in the monoclinic C2/c space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. In the second Ce site, Ce(2) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(6) atoms. In the third Ce site, Ce(3) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms. W(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms. There are six inequivalent O sites. In the first O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Ce(3) and one W(1) atom. In the second O site, O(4) is bonded to two equivalent Ce(3) and two equivalent W(1) atoms to form distorted OCe2W2 tetrahedra that share corners with two equivalent O(1)Ce3W tetrahedra, corners with four equivalent O(6)Ce4 tetrahedra,  an edgeedge with one O(1)Ce3W tetrahedra, and edges with two equivalent O(4)Ce2W2 tetrahedra. In the third O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ce(1) and one W(1) atom. In the fourth O site, O(6) is bonded to two equivalent Ce(2) and two equivalent Ce(3) atoms to form OCe4 tetrahedra that share corners with two equivalent O(6)Ce4 tetrahedra, corners with four equivalent O(4)Ce2W2 tetrahedra, corners with four equivalent O(1)Ce3W tetrahedra,  an edgeedge with one O(1)Ce3W tetrahedra, and edges with three equivalent O(6)Ce4 tetrahedra. In the fifth O site, O(1) is bonded to one Ce(1), one Ce(2), one Ce(3), and one W(1) atom to form OCe3W tetrahedra that share corners with two equivalent O(4)Ce2W2 tetrahedra, corners with two equivalent O(1)Ce3W tetrahedra, corners with four equivalent O(6)Ce4 tetrahedra,  an edgeedge with one O(4)Ce2W2 tetrahedra, and  an edgeedge with one O(6)Ce4 tetrahedra. In the sixth O site, O(2) is bonded in a 4-coordinate geometry to one Ce(1), one Ce(2), one Ce(3), and one W(1) atom.
Ce2WO6 crystallizes in the monoclinic C2/c space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. Both Ce(1)-O(1) bond lengths are 2.53 Å. Both Ce(1)-O(2) bond lengths are 2.44 Å. There are two shorter (2.40 Å) and two longer (2.42 Å) Ce(1)-O(5) bond lengths. In the second Ce site, Ce(2) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(6) atoms. Both Ce(2)-O(1) bond lengths are 2.34 Å. Both Ce(2)-O(2) bond lengths are 2.62 Å. There are two shorter (2.27 Å) and two longer (2.52 Å) Ce(2)-O(6) bond lengths. In the third Ce site, Ce(3) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(6) atoms. The Ce(3)-O(1) bond length is 2.34 Å. The Ce(3)-O(2) bond length is 2.75 Å. There is one shorter (2.32 Å) and one longer (2.45 Å) Ce(3)-O(3) bond length. There is one shorter (2.46 Å) and one longer (2.56 Å) Ce(3)-O(4) bond length. There is one shorter (2.26 Å) and one longer (2.42 Å) Ce(3)-O(6) bond length. W(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms. The W(1)-O(1) bond length is 2.14 Å. The W(1)-O(2) bond length is 1.93 Å. The W(1)-O(3) bond length is 1.97 Å. The W(1)-O(5) bond length is 1.94 Å. There is one shorter (1.99 Å) and one longer (2.38 Å) W(1)-O(4) bond length. There are six inequivalent O sites. In the first O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Ce(3) and one W(1) atom. In the second O site, O(4) is bonded to two equivalent Ce(3) and two equivalent W(1) atoms to form distorted OCe2W2 tetrahedra that share corners with two equivalent O(1)Ce3W tetrahedra, corners with four equivalent O(6)Ce4 tetrahedra,  an edgeedge with one O(1)Ce3W tetrahedra, and edges with two equivalent O(4)Ce2W2 tetrahedra. In the third O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ce(1) and one W(1) atom. In the fourth O site, O(6) is bonded to two equivalent Ce(2) and two equivalent Ce(3) atoms to form OCe4 tetrahedra that share corners with two equivalent O(6)Ce4 tetrahedra, corners with four equivalent O(4)Ce2W2 tetrahedra, corners with four equivalent O(1)Ce3W tetrahedra,  an edgeedge with one O(1)Ce3W tetrahedra, and edges with three equivalent O(6)Ce4 tetrahedra. In the fifth O site, O(1) is bonded to one Ce(1), one Ce(2), one Ce(3), and one W(1) atom to form OCe3W tetrahedra that share corners with two equivalent O(4)Ce2W2 tetrahedra, corners with two equivalent O(1)Ce3W tetrahedra, corners with four equivalent O(6)Ce4 tetrahedra,  an edgeedge with one O(4)Ce2W2 tetrahedra, and  an edgeedge with one O(6)Ce4 tetrahedra. In the sixth O site, O(2) is bonded in a 4-coordinate geometry to one Ce(1), one Ce(2), one Ce(3), and one W(1) atom.