Diaqua-(triethano-lamine)copper(II) sulfate monohydrate.

The asymmetric unit of the title compound, [Cu(C(6)H(15)NO(3))(H(2)O)(2)]SO(4)·H(2)O, contains a complex cation, a sulfate anion and one uncoordinated water mol-ecule. In the complex cation, the Cu(II) ion is coordinated by five O atoms (three of which are from the triethano-lamine ligand and two from coordinated water mol-ecules) and one N atom of the triethano-lamine ligand in a typical Jahn-Teller-distorted octa-hedral geometry. Classical inter-molecular O-H⋯O hydrogen bonds link the cation, the sulfate anion and the water mol-ecule into a two-dimensional network.