An investigation of the potential governing rotation about the O—CH 2 bond in 4-chloroethoxybenzene by comparing observed and calculated dipolar couplings obtained for a sample dissolved in a nematic solvent

The shape of the potential function V(φ) governing rotation about the O—CH2 bond in 4-chloroethoxybenzene has been investigated by comparing partially averaged dipolar couplings obtained for a sample dissolved in a liquid-crystal solvent with values calculated by the theoretical model of Emsley, Luckhurst and Stockley (Proc. R. Soc. London, Ser. A, 1982, 381, 117).