Di-μ-chlorido-bis­{[2-(2-pyridylmethyl­amino)ethanesulfonato-κ(3) N,N′,O]copper(II)}

In the title compound, [Cu(2)(C(8)H(11)N(2)O(3)S)(2)Cl(2)], the Cu atoms are five-coordinated in a distorted square-pyramidal geometry by three donor atoms of the deprotonated anionic 2-(2-pyridylmethyl­amino)ethanesulfonate (pmt) ligand and two Cl atoms. The Cl atoms bridge two Cu atoms, giving a binuclear structure; the centroid of the Cu(2)Cl(2) ring lies on a crystallographic center of inversion. The complex is stabilized by hydrogen bonds and π–π stacking inter­actions [average inter­planar distance = 3.4969 (1) Å and ring-centroid separation distance = 4.1068 (4) Å].