CuH2(SO3)2(H2)2(NO)2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four 1333-74-0 molecules, four nitroxyl molecules, and two CuH2(SO3)2 clusters. In each CuH2(SO3)2 cluster, Cu(1) is bonded in a linear geometry to two equivalent O(1) atoms. H(2) is bonded in a single-bond geometry to one O(3) atom. S(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one S(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one S(1) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one H(2) and one S(1) atom.
CuH2(SO3)2(H2)2(NO)2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four 1333-74-0 molecules, four nitroxyl molecules, and two CuH2(SO3)2 clusters. In each CuH2(SO3)2 cluster, Cu(1) is bonded in a linear geometry to two equivalent O(1) atoms. Both Cu(1)-O(1) bond lengths are 1.86 Å. H(2) is bonded in a single-bond geometry to one O(3) atom. The H(2)-O(3) bond length is 0.98 Å. S(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. The S(1)-O(1) bond length is 1.53 Å. The S(1)-O(2) bond length is 1.49 Å. The S(1)-O(3) bond length is 1.67 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one S(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one S(1) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one H(2) and one S(1) atom.