Dy2MoO6 crystallizes in the monoclinic C2/c space group. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms. In the second Dy site, Dy(2) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(5) atoms. In the third Dy site, Dy(3) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Mo(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 4-coordinate geometry to one Dy(1), one Dy(2), one Dy(3), and one Mo(1) atom. In the second O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Dy(1) and one Mo(1) atom. In the third O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Dy(2) and one Mo(1) atom. In the fourth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Dy(1) and one Mo(1) atom. In the fifth O site, O(1) is bonded to two equivalent Dy(1) and two equivalent Dy(3) atoms to form ODy4 tetrahedra that share corners with two equivalent O(1)Dy4 tetrahedra, corners with four equivalent O(2)Dy3Mo tetrahedra,  an edgeedge with one O(2)Dy3Mo tetrahedra, and edges with three equivalent O(1)Dy4 tetrahedra. In the sixth O site, O(2) is bonded to one Dy(1), one Dy(2), one Dy(3), and one Mo(1) atom to form ODy3Mo tetrahedra that share corners with two equivalent O(2)Dy3Mo tetrahedra, corners with four equivalent O(1)Dy4 tetrahedra, and  an edgeedge with one O(1)Dy4 tetrahedra.
Dy2MoO6 crystallizes in the monoclinic C2/c space group. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms. The Dy(1)-O(2) bond length is 2.26 Å. The Dy(1)-O(3) bond length is 2.63 Å. There is one shorter (2.17 Å) and one longer (2.25 Å) Dy(1)-O(1) bond length. There is one shorter (2.43 Å) and one longer (2.55 Å) Dy(1)-O(4) bond length. There is one shorter (2.40 Å) and one longer (2.43 Å) Dy(1)-O(6) bond length. In the second Dy site, Dy(2) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(5) atoms. Both Dy(2)-O(2) bond lengths are 2.20 Å. Both Dy(2)-O(3) bond lengths are 2.41 Å. There are two shorter (2.38 Å) and two longer (2.49 Å) Dy(2)-O(5) bond lengths. In the third Dy site, Dy(3) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Both Dy(3)-O(2) bond lengths are 2.29 Å. Both Dy(3)-O(3) bond lengths are 2.77 Å. There are two shorter (2.21 Å) and two longer (2.37 Å) Dy(3)-O(1) bond lengths. Mo(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Mo(1)-O(2) bond length is 2.22 Å. The Mo(1)-O(3) bond length is 1.81 Å. The Mo(1)-O(4) bond length is 1.79 Å. The Mo(1)-O(5) bond length is 1.78 Å. The Mo(1)-O(6) bond length is 1.82 Å. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 4-coordinate geometry to one Dy(1), one Dy(2), one Dy(3), and one Mo(1) atom. In the second O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Dy(1) and one Mo(1) atom. In the third O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Dy(2) and one Mo(1) atom. In the fourth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Dy(1) and one Mo(1) atom. In the fifth O site, O(1) is bonded to two equivalent Dy(1) and two equivalent Dy(3) atoms to form ODy4 tetrahedra that share corners with two equivalent O(1)Dy4 tetrahedra, corners with four equivalent O(2)Dy3Mo tetrahedra,  an edgeedge with one O(2)Dy3Mo tetrahedra, and edges with three equivalent O(1)Dy4 tetrahedra. In the sixth O site, O(2) is bonded to one Dy(1), one Dy(2), one Dy(3), and one Mo(1) atom to form ODy3Mo tetrahedra that share corners with two equivalent O(2)Dy3Mo tetrahedra, corners with four equivalent O(1)Dy4 tetrahedra, and  an edgeedge with one O(1)Dy4 tetrahedra.