Investigations of structure and conformation. Part 14. INDO and electron spin resonance studies of aliphatic sulphonyl radicals

Abstract

A conformational analysis is presented for a series of aliphatic sulphonyl radicals RSO₂·; this is based on the magnitudes of hyperfine splittings from α- and β-protons (C_β–C_α–SO₂·), on the obervation of line broadening resulting from restricted rotation about both the C_α–S and the C_β–C_α bonds, and on the results of molecular orbital calculations employing the INDO (Intermediate Neglect of Differential Overlap) method. The spectra and structure of the novel alkenesulphonyl radicals (e.g. CH₂CHSO₂·) are also described.