Crystal structure of bis­{μ-4-methyl-N′-[3-(oxido­imino)­butan-2-yl­idene]benzene­sulfono­hydrazidato}bis­[(dimethyl sulfoxide-κO)copper(II)]

In the title compound, [Cu₂(C₁₁H₁₃N₃O₃S)₂(C₂H₆OS)₂], the Cu^II cation is N,N′,O-chelated by a deprotonated hy­droxy­imino-tosyl­hydrazone ligand and coordinated by a dimethyl sulfoxide mol­ecule. One O atom from the adjacent hy­droxy­imino-tosyl­hydrazone ligand bridges the Cu^II cation, forming the centrosymmetric dimeric complex. The cation is in an overall distorted N₂O₃ square-pyramidal coordination environment. The methyl­benzene ring is twisted with respect to the hydrazine fragment, with a dihedral angle of 89.54 (9)° between the planes. An intra­molecular C—H...O hydrogen bond occurs. In the crystal, mol­ecules are linked by weak C—H...O and C—H...S inter­actions. Weak π–π stacking is also observed between parallel benzene rings of adjacent mol­ecules, the centroid–centroid distance being 3.9592 (17) Å.