Some partially resolved problems in NMR of mixed liquid crystals of opposite diamagnetic anisotropies

Abstract

NMR spectra of molecules dissolved in mixed liquid crystals of opposite diamagnetic anisotropies have been extensively used in the determination of chemical shift anisotropy and other useful information which is normally difficult to derive without the help of such ekxperiments. However, studies on systems such as methanol, tetramethylsilane and the observation of two spectra at the critical concentration and temperature are only partially understood. Details of such investigations are presented with critical up-to-date evaluation of the experiments.