Dipole moments and molecular conformation of aryl diarylmethyl sulphides

Abstract

The electric dipole moments of X¹C₆H₄(X²C₆H₄)CHSC₂H₄Y (X¹= X²= H, p-CI, or p-Me, Y =m- or p-CI or p-Me) have been measured in benzene solution. Form the value found for [graphic ommitted] (114°) it is suggested that there is some mixing between the 3s orbital and the two 3p orbitals of the sulphur atom involved in the C–S bonds. It has been shown that there is free internal rotation about the bond between sulphur and the sp³ carbon atoms.