Electric dipole moments of some acrylonitriles, allyl cyanides, and alicyclic nitriles

Abstract

The electric dipole moments of 24 nitriles have been measured in benzene solution at 25·0 °C. The results for acrylonitrile, its cis- and trans-substituted derivatives, and alicyclic nitriles are discussed in terms of group and induced moments while those for three allyl cyanides are employed to indicate preferred molecular conformations. The greatest increment in dipole moment arises from the presence of a trans-CH₂–CC–CN unit.