Weak complexes of sulphur and selenium. Part 5. Halide-ion replacement in 1:1 complexes of sulphur dioxide, thionyl chloride, and sulphonyl choride with halide ions in acetonitrile and dimethyl sulphoxide

Abstract

The replacement of the iodide ligand in the complex species SO₂·l-, SOCl₂·l-, and SO₂Cl₂·l- by chloride, bromide, and thiocyanate ions has been studied spectrophotometrically. The extent of replacement depends on complex stability, the nature of the replacing ligand, and on the solvent used.