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What is it about?
In the title compound, [Cu2(C11H13N3O3S)2(C2H6OS)2], the CuII 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 CuII 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 [pi]-[pi] stacking is also observed between parallel benzene rings of adjacent molecules, the centroid-centroid distance being 3.9592 (17) Å.