LiMn2Cu(RuO4)2 is Spinel-derived structured and crystallizes in the orthorhombic Imm2 space group. Li(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form LiO4 tetrahedra that share corners with six equivalent Mn(1)O6 octahedra and corners with six equivalent Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-64°. Mn(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Cu(1)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with four equivalent Ru(1)O6 octahedra. Ru(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms to form RuO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Cu(1)O4 tetrahedra, edges with two equivalent Ru(1)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. Cu(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CuO4 tetrahedra that share corners with six equivalent Mn(1)O6 octahedra and corners with six equivalent Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-63°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Mn(1), two equivalent Ru(1), and one Cu(1) atom to form distorted OMnCuRu2 trigonal pyramids that share corners with two equivalent O(2)Mn2CuRu tetrahedra, corners with four equivalent O(4)LiMn2Ru tetrahedra,  a cornercorner with one O(1)MnCuRu2 trigonal pyramid, edges with two equivalent O(2)Mn2CuRu tetrahedra, and  an edgeedge with one O(1)MnCuRu2 trigonal pyramid. In the second O site, O(2) is bonded to two equivalent Mn(1), one Ru(1), and one Cu(1) atom to form distorted OMn2CuRu tetrahedra that share  a cornercorner with one O(2)Mn2CuRu tetrahedra, corners with five equivalent O(4)LiMn2Ru tetrahedra, corners with two equivalent O(1)MnCuRu2 trigonal pyramids,  an edgeedge with one O(2)Mn2CuRu tetrahedra, and edges with two equivalent O(1)MnCuRu2 trigonal pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(1), one Mn(1), and two equivalent Ru(1) atoms. In the fourth O site, O(4) is bonded to one Li(1), two equivalent Mn(1), and one Ru(1) atom to form distorted OLiMn2Ru tetrahedra that share  a cornercorner with one O(4)LiMn2Ru tetrahedra, corners with five equivalent O(2)Mn2CuRu tetrahedra, corners with four equivalent O(1)MnCuRu2 trigonal pyramids, and  an edgeedge with one O(4)LiMn2Ru tetrahedra.
LiMn2Cu(RuO4)2 is Spinel-derived structured and crystallizes in the orthorhombic Imm2 space group. Li(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form LiO4 tetrahedra that share corners with six equivalent Mn(1)O6 octahedra and corners with six equivalent Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-64°. Both Li(1)-O(3) bond lengths are 1.96 Å. Both Li(1)-O(4) bond lengths are 1.98 Å. Mn(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Cu(1)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with four equivalent Ru(1)O6 octahedra. The Mn(1)-O(1) bond length is 2.23 Å. The Mn(1)-O(3) bond length is 2.26 Å. Both Mn(1)-O(2) bond lengths are 2.02 Å. Both Mn(1)-O(4) bond lengths are 1.99 Å. Ru(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms to form RuO6 octahedra that share corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Cu(1)O4 tetrahedra, edges with two equivalent Ru(1)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The Ru(1)-O(2) bond length is 2.08 Å. The Ru(1)-O(4) bond length is 2.05 Å. Both Ru(1)-O(1) bond lengths are 2.05 Å. Both Ru(1)-O(3) bond lengths are 1.99 Å. Cu(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CuO4 tetrahedra that share corners with six equivalent Mn(1)O6 octahedra and corners with six equivalent Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-63°. Both Cu(1)-O(1) bond lengths are 2.02 Å. Both Cu(1)-O(2) bond lengths are 2.01 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Mn(1), two equivalent Ru(1), and one Cu(1) atom to form distorted OMnCuRu2 trigonal pyramids that share corners with two equivalent O(2)Mn2CuRu tetrahedra, corners with four equivalent O(4)LiMn2Ru tetrahedra,  a cornercorner with one O(1)MnCuRu2 trigonal pyramid, edges with two equivalent O(2)Mn2CuRu tetrahedra, and  an edgeedge with one O(1)MnCuRu2 trigonal pyramid. In the second O site, O(2) is bonded to two equivalent Mn(1), one Ru(1), and one Cu(1) atom to form distorted OMn2CuRu tetrahedra that share  a cornercorner with one O(2)Mn2CuRu tetrahedra, corners with five equivalent O(4)LiMn2Ru tetrahedra, corners with two equivalent O(1)MnCuRu2 trigonal pyramids,  an edgeedge with one O(2)Mn2CuRu tetrahedra, and edges with two equivalent O(1)MnCuRu2 trigonal pyramids. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Li(1), one Mn(1), and two equivalent Ru(1) atoms. In the fourth O site, O(4) is bonded to one Li(1), two equivalent Mn(1), and one Ru(1) atom to form distorted OLiMn2Ru tetrahedra that share  a cornercorner with one O(4)LiMn2Ru tetrahedra, corners with five equivalent O(2)Mn2CuRu tetrahedra, corners with four equivalent O(1)MnCuRu2 trigonal pyramids, and  an edgeedge with one O(4)LiMn2Ru tetrahedra.