Lu2Ru2O7 crystallizes in the cubic Fd-3m space group. Lu(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. Ru(1) is bonded to six equivalent O(1) 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 two equivalent Lu(1) and two equivalent Ru(1) atoms to form OLu2Ru2 tetrahedra that share corners with two equivalent O(2)Lu4 tetrahedra, corners with twelve equivalent O(1)Lu2Ru2 tetrahedra,  an edgeedge with one O(2)Lu4 tetrahedra, and edges with four equivalent O(1)Lu2Ru2 tetrahedra. In the second O site, O(2) is bonded to four equivalent Lu(1) atoms to form OLu4 tetrahedra that share corners with four equivalent O(2)Lu4 tetrahedra, corners with twelve equivalent O(1)Lu2Ru2 tetrahedra, and edges with six equivalent O(1)Lu2Ru2 tetrahedra.
Lu2Ru2O7 crystallizes in the cubic Fd-3m space group. Lu(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. Both Lu(1)-O(2) bond lengths are 2.18 Å. All Lu(1)-O(1) bond lengths are 2.41 Å. Ru(1) is bonded to six equivalent O(1) atoms to form corner-sharing RuO6 octahedra. The corner-sharing octahedral tilt angles are 53°. All Ru(1)-O(1) bond lengths are 2.00 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Lu(1) and two equivalent Ru(1) atoms to form OLu2Ru2 tetrahedra that share corners with two equivalent O(2)Lu4 tetrahedra, corners with twelve equivalent O(1)Lu2Ru2 tetrahedra,  an edgeedge with one O(2)Lu4 tetrahedra, and edges with four equivalent O(1)Lu2Ru2 tetrahedra. In the second O site, O(2) is bonded to four equivalent Lu(1) atoms to form OLu4 tetrahedra that share corners with four equivalent O(2)Lu4 tetrahedra, corners with twelve equivalent O(1)Lu2Ru2 tetrahedra, and edges with six equivalent O(1)Lu2Ru2 tetrahedra.