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Colourless crystals of the title compound, bis(2-bromophenyl) disulfide, C(12)H(8)Br(2)S(2), are obtained from the reaction of 2-bromophenylmercaptan with metallic sodium and either zinc chloride or cadmium chloride in methanol. In the presence of Zn(II) ions, the crystals are orthorhombic (space group Pbca, with Z' = 1); with Cd(II) ions present, the product is triclinic (space group (-)P1, with Z' = 4). Both polymorphs exhibit significant intramolecular C-H.S hydrogen bonds. In the orthorhombic form, molecules are linked by intermolecular C-H...Br hydrogen bonds, while in the triclinic form, molecules exhibit Br...Br contacts.

Synthesis, crystal structure and superoxide dismutase activity of [pyrrolidinium] [Co(sulfathiazole) 3 (pyrrolidine)], Journal of Coordination Chemistry, 62:6, 951-957,The preparation, spectroscopic properties and crystal structure of [pyrrolidinium] [Co(sulfathiazole) 3 (pyrrolidine)] are reported. The X-ray structure reveals tetrahedral geometry around cobalt. Three sulfathiazole ligands (each in a ,N-binding mode) occupy three positions, while the remaining position is occupied by a disordered pyrrolidine. A pyrrolidinium is also disordered. The superoxide dismutase mimetic activity of the complex was investigated using the indirect xanthine-xanthine oxidase-nitroblue tetrazolium method and compared to that of the native enzyme.