Di­methyl­ammonium tetra­aqua­(hydrogen­sulfato)­sulfato­cuprate(II)

In the title salt, [(CH(3))(2)NH(2)][Cu(HSO(4))(SO(4))(H(2)O)(4)], one type of cation and anion is present in the asymmetric unit. The Cu(II) atom in the complex anion, [Cu(HSO(4))(SO(4))(H(2)O)(4)](−), has a tetra­gonal bipyramidal [4 + 2] coordination caused by a Jahn–Teller distortion, with the aqua ligands in equatorial and two O atoms of tetra­hedral HSO(4) and SO(4) units in apical positions. Both types of ions form sheets parallel to (010). The inter­connection within and between the sheets is reinforced by O—H⋯O and N—H⋯O hydrogen bonds, respectively, involving the water mol­ecules, the two types of sulfate anions and the ammonium groups.