Dipole Moments and Absorption Spectra of 2-Pyridyl-Phenyl Sulphide and 2-Pyridyl-Phenyl Sulphone

Abstract

Abstract The electric dipole moments in benzene solution have been measured for the title compounds and analysed in terms of the conformations of these molecules in solution. The origin of the electronic absorptions have been interpreted by means of a theoretical approach (CNDO/S-CI) and, to­ gether with the S02 stretching vibrations, have been com­ pared with the corresponding spectral features observed for the analogous related diphenyl and di-2-pyridyl compounds.