Weak complexes of sulphur and selenium. Part III. Effect of solvent on the stability of 1 : 1 complexes of sulphur dioxide, sulphinyl dichloride, and sulphonyl dichloride with halogen ions

Abstract

The complex species SO_2′X^–, SOCl_2′X^–, and SO₂Cl_2′X^–(X = Cl, Br, and I) have been studied in acetonitrile, dimethyl sulphoxide (dmso), and water (for SO_2′X^– species only). It appears that solvation of halide ions by dmso is important in deciding the stabilities of the different species.