RbLiCu2H3(SO5)2 crystallizes in the triclinic P1 space group. Rb(1) is bonded to one O(1), one O(10), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form distorted RbO7 pentagonal bipyramids that share corners with two equivalent S(1)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent S(2)O4 tetrahedra,  an edgeedge with one Cu(1)O5 square pyramid,  an edgeedge with one Cu(2)O5 square pyramid, and  an edgeedge with one S(1)O4 tetrahedra. Li(1) is bonded to one O(3), one O(4), one O(6), and one O(9) atom to form distorted LiO4 tetrahedra that share corners with three equivalent Rb(1)O7 pentagonal bipyramids,  a cornercorner with one Cu(1)O5 square pyramid,  a cornercorner with one Cu(2)O5 square pyramid,  a cornercorner with one S(1)O4 tetrahedra, and  an edgeedge with one S(2)O4 tetrahedra. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form distorted CuO5 square pyramids that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one S(2)O4 tetrahedra, corners with two equivalent S(1)O4 tetrahedra,  an edgeedge with one Rb(1)O7 pentagonal bipyramid, and edges with two equivalent Cu(2)O5 square pyramids. In the second Cu site, Cu(2) is bonded to one O(1), one O(5), one O(6), one O(7), and one O(8) atom to form distorted CuO5 square pyramids that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one S(2)O4 tetrahedra, corners with two equivalent S(1)O4 tetrahedra,  an edgeedge with one Rb(1)O7 pentagonal bipyramid, and edges with two equivalent Cu(1)O5 square pyramids. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(5) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded to one O(1), one O(2), one O(7), and one O(9) atom to form SO4 tetrahedra that share corners with two equivalent Rb(1)O7 pentagonal bipyramids, corners with two equivalent Cu(1)O5 square pyramids, corners with two equivalent Cu(2)O5 square pyramids,  a cornercorner with one Li(1)O4 tetrahedra, and  an edgeedge with one Rb(1)O7 pentagonal bipyramid. In the second S site, S(2) is bonded to one O(10), one O(3), one O(4), and one O(8) atom to form SO4 tetrahedra that share corners with three equivalent Rb(1)O7 pentagonal bipyramids,  a cornercorner with one Cu(1)O5 square pyramid,  a cornercorner with one Cu(2)O5 square pyramid, and  an edgeedge with one Li(1)O4 tetrahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Rb(1), one Cu(2), and one S(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Rb(1), one Cu(1), and one S(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1), one Li(1), and one S(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one Li(1), and one S(2) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Cu(1), one Cu(2), one H(1), and one H(3) atom. In the sixth O site, O(6) is bonded in a distorted tetrahedral geometry to one Li(1), one Cu(1), one Cu(2), and one H(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Rb(1), one Cu(1), one Cu(2), and one S(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Cu(1), one Cu(2), and one S(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Li(1), and one S(1) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Rb(1) and one S(2) atom.
RbLiCu2H3(SO5)2 crystallizes in the triclinic P1 space group. Rb(1) is bonded to one O(1), one O(10), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form distorted RbO7 pentagonal bipyramids that share corners with two equivalent S(1)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent S(2)O4 tetrahedra,  an edgeedge with one Cu(1)O5 square pyramid,  an edgeedge with one Cu(2)O5 square pyramid, and  an edgeedge with one S(1)O4 tetrahedra. The Rb(1)-O(1) bond length is 2.89 Å. The Rb(1)-O(10) bond length is 2.97 Å. The Rb(1)-O(2) bond length is 2.88 Å. The Rb(1)-O(3) bond length is 2.81 Å. The Rb(1)-O(4) bond length is 2.81 Å. The Rb(1)-O(7) bond length is 3.09 Å. The Rb(1)-O(9) bond length is 3.03 Å. Li(1) is bonded to one O(3), one O(4), one O(6), and one O(9) atom to form distorted LiO4 tetrahedra that share corners with three equivalent Rb(1)O7 pentagonal bipyramids,  a cornercorner with one Cu(1)O5 square pyramid,  a cornercorner with one Cu(2)O5 square pyramid,  a cornercorner with one S(1)O4 tetrahedra, and  an edgeedge with one S(2)O4 tetrahedra. The Li(1)-O(3) bond length is 2.09 Å. The Li(1)-O(4) bond length is 2.09 Å. The Li(1)-O(6) bond length is 1.94 Å. The Li(1)-O(9) bond length is 1.90 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(2), one O(5), one O(6), one O(7), and one O(8) atom to form distorted CuO5 square pyramids that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one S(2)O4 tetrahedra, corners with two equivalent S(1)O4 tetrahedra,  an edgeedge with one Rb(1)O7 pentagonal bipyramid, and edges with two equivalent Cu(2)O5 square pyramids. The Cu(1)-O(2) bond length is 2.27 Å. The Cu(1)-O(5) bond length is 2.11 Å. The Cu(1)-O(6) bond length is 1.95 Å. The Cu(1)-O(7) bond length is 2.20 Å. The Cu(1)-O(8) bond length is 2.13 Å. In the second Cu site, Cu(2) is bonded to one O(1), one O(5), one O(6), one O(7), and one O(8) atom to form distorted CuO5 square pyramids that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one S(2)O4 tetrahedra, corners with two equivalent S(1)O4 tetrahedra,  an edgeedge with one Rb(1)O7 pentagonal bipyramid, and edges with two equivalent Cu(1)O5 square pyramids. The Cu(2)-O(1) bond length is 2.25 Å. The Cu(2)-O(5) bond length is 2.10 Å. The Cu(2)-O(6) bond length is 1.95 Å. The Cu(2)-O(7) bond length is 2.26 Å. The Cu(2)-O(8) bond length is 2.14 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(5) atom. The H(1)-O(5) bond length is 1.01 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) atom. The H(2)-O(6) bond length is 0.97 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(5) atom. The H(3)-O(5) bond length is 0.98 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded to one O(1), one O(2), one O(7), and one O(9) atom to form SO4 tetrahedra that share corners with two equivalent Rb(1)O7 pentagonal bipyramids, corners with two equivalent Cu(1)O5 square pyramids, corners with two equivalent Cu(2)O5 square pyramids,  a cornercorner with one Li(1)O4 tetrahedra, and  an edgeedge with one Rb(1)O7 pentagonal bipyramid. The S(1)-O(1) bond length is 1.49 Å. The S(1)-O(2) bond length is 1.49 Å. The S(1)-O(7) bond length is 1.53 Å. The S(1)-O(9) bond length is 1.48 Å. In the second S site, S(2) is bonded to one O(10), one O(3), one O(4), and one O(8) atom to form SO4 tetrahedra that share corners with three equivalent Rb(1)O7 pentagonal bipyramids,  a cornercorner with one Cu(1)O5 square pyramid,  a cornercorner with one Cu(2)O5 square pyramid, and  an edgeedge with one Li(1)O4 tetrahedra. The S(2)-O(10) bond length is 1.48 Å. The S(2)-O(3) bond length is 1.49 Å. The S(2)-O(4) bond length is 1.49 Å. The S(2)-O(8) bond length is 1.53 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Rb(1), one Cu(2), and one S(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Rb(1), one Cu(1), and one S(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1), one Li(1), and one S(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one Li(1), and one S(2) atom. In the fifth O site, O(5) is bonded in a distorted water-like geometry to one Cu(1), one Cu(2), one H(1), and one H(3) atom. In the sixth O site, O(6) is bonded in a distorted tetrahedral geometry to one Li(1), one Cu(1), one Cu(2), and one H(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Rb(1), one Cu(1), one Cu(2), and one S(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Cu(1), one Cu(2), and one S(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Rb(1), one Li(1), and one S(1) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Rb(1) and one S(2) atom.