LiCu2(RhO2)4 crystallizes in the orthorhombic Imm2 space group. Li(1) is bonded in a 2-coordinate geometry to one Cu(2), two equivalent O(1), and two equivalent O(3) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted RhO6 octahedra that share corners with three equivalent Cu(1)O4 tetrahedra, edges with two equivalent Rh(1)O6 octahedra, and edges with four equivalent Rh(2)O6 octahedra. In the second Rh site, Rh(2) is bonded to one O(2), one O(3), two equivalent O(1), and two equivalent O(4) atoms to form RhO6 octahedra that share corners with three equivalent Cu(1)O4 tetrahedra, edges with two equivalent Rh(2)O6 octahedra, and edges with four equivalent Rh(1)O6 octahedra. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form CuO4 tetrahedra that share corners with six equivalent Rh(1)O6 octahedra and corners with six equivalent Rh(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-61°. In the second Cu site, Cu(2) is bonded in a 3-coordinate geometry to one Li(1) and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(1), one Rh(1), and two equivalent Rh(2) atoms. In the second O site, O(2) is bonded to one Rh(2), two equivalent Rh(1), and one Cu(2) atom to form a mixture of edge and corner-sharing OCuRh3 trigonal pyramids. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Li(1), one Rh(2), two equivalent Rh(1), and one Cu(1) atom. In the fourth O site, O(4) is bonded to one Rh(1), two equivalent Rh(2), and one Cu(1) atom to form a mixture of distorted edge and corner-sharing OCuRh3 trigonal pyramids.
LiCu2(RhO2)4 crystallizes in the orthorhombic Imm2 space group. Li(1) is bonded in a 2-coordinate geometry to one Cu(2), two equivalent O(1), and two equivalent O(3) atoms. The Li(1)-Cu(2) bond length is 2.35 Å. Both Li(1)-O(1) bond lengths are 1.82 Å. Both Li(1)-O(3) bond lengths are 2.39 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted RhO6 octahedra that share corners with three equivalent Cu(1)O4 tetrahedra, edges with two equivalent Rh(1)O6 octahedra, and edges with four equivalent Rh(2)O6 octahedra. The Rh(1)-O(1) bond length is 2.11 Å. The Rh(1)-O(4) bond length is 2.07 Å. Both Rh(1)-O(2) bond lengths are 2.06 Å. Both Rh(1)-O(3) bond lengths are 2.09 Å. In the second Rh site, Rh(2) is bonded to one O(2), one O(3), two equivalent O(1), and two equivalent O(4) atoms to form RhO6 octahedra that share corners with three equivalent Cu(1)O4 tetrahedra, edges with two equivalent Rh(2)O6 octahedra, and edges with four equivalent Rh(1)O6 octahedra. The Rh(2)-O(2) bond length is 2.10 Å. The Rh(2)-O(3) bond length is 2.09 Å. Both Rh(2)-O(1) bond lengths are 2.05 Å. Both Rh(2)-O(4) bond lengths are 2.10 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form CuO4 tetrahedra that share corners with six equivalent Rh(1)O6 octahedra and corners with six equivalent Rh(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-61°. Both Cu(1)-O(3) bond lengths are 2.12 Å. Both Cu(1)-O(4) bond lengths are 2.11 Å. In the second Cu site, Cu(2) is bonded in a 3-coordinate geometry to one Li(1) and two equivalent O(2) atoms. Both Cu(2)-O(2) bond lengths are 1.82 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(1), one Rh(1), and two equivalent Rh(2) atoms. In the second O site, O(2) is bonded to one Rh(2), two equivalent Rh(1), and one Cu(2) atom to form a mixture of edge and corner-sharing OCuRh3 trigonal pyramids. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Li(1), one Rh(2), two equivalent Rh(1), and one Cu(1) atom. In the fourth O site, O(4) is bonded to one Rh(1), two equivalent Rh(2), and one Cu(1) atom to form a mixture of distorted edge and corner-sharing OCuRh3 trigonal pyramids.