Dy2Ru2O7 crystallizes in the cubic Fd-3m space group. Dy(1) is bonded in a body-centered cubic geometry to two equivalent O(1) and six equivalent O(2) atoms. Ru(1) is bonded to six equivalent O(2) atoms to form corner-sharing RuO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Dy(1) atoms to form ODy4 tetrahedra that share corners with four equivalent O(1)Dy4 tetrahedra, corners with twelve equivalent O(2)Dy2Ru2 tetrahedra, and edges with six equivalent O(2)Dy2Ru2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Dy(1) and two equivalent Ru(1) atoms to form distorted ODy2Ru2 tetrahedra that share corners with two equivalent O(1)Dy4 tetrahedra, corners with twelve equivalent O(2)Dy2Ru2 tetrahedra,  an edgeedge with one O(1)Dy4 tetrahedra, and edges with four equivalent O(2)Dy2Ru2 tetrahedra.
Dy2Ru2O7 crystallizes in the cubic Fd-3m space group. Dy(1) is bonded in a body-centered cubic geometry to two equivalent O(1) and six equivalent O(2) atoms. Both Dy(1)-O(1) bond lengths are 2.20 Å. All Dy(1)-O(2) bond lengths are 2.44 Å. Ru(1) is bonded to six equivalent O(2) atoms to form corner-sharing RuO6 octahedra. The corner-sharing octahedral tilt angles are 53°. All Ru(1)-O(2) bond lengths are 2.00 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Dy(1) atoms to form ODy4 tetrahedra that share corners with four equivalent O(1)Dy4 tetrahedra, corners with twelve equivalent O(2)Dy2Ru2 tetrahedra, and edges with six equivalent O(2)Dy2Ru2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Dy(1) and two equivalent Ru(1) atoms to form distorted ODy2Ru2 tetrahedra that share corners with two equivalent O(1)Dy4 tetrahedra, corners with twelve equivalent O(2)Dy2Ru2 tetrahedra,  an edgeedge with one O(1)Dy4 tetrahedra, and edges with four equivalent O(2)Dy2Ru2 tetrahedra.