Molecular polarisability. Conformations of the chlorobenzaldehydes and chloroacetophenones

Abstract

Dipole moments and molar Kerr constants (× 10¹²) at 25 °C are reported for the following as solutes in carbon tetrachloride: o-chlorobenzaldehyde (3·00 D, +437), m-chlorobenzaldehyde (2·61 D, +273), p-chlorobenzaldehyde (2·00 D, +168), o-chloroacetophenone (3·00 D, +138), m-chloroacetophenone (2·81 D, +252), and p-chloroacetophenone (2·41 D, +53). The results are analysed to provide information concerning the preferred conformations of these molecules.