The application to liquid crystals of transient oscillations in cross polarization experiments

A method for the determination of the proton-carbon dipolar couplings and the order parameters along several C-H bond axes of the liquid crystal N-(p'-methoxybenzylidene)-p-n-butylaniline by using the transient oscillations observed in cross-polarization experiments has been proposed. A two-dimensional NMR method based on the idea of the depolarization of rare spins has also been shown to be of use in determining the oscillation frequencies. (C) 1996 Academic Press, Inc.