NMR SPECTRUM OF PYRIDINE ORIENTED IN NEMATIC PHASE

The N.M.R. spectrum of pyridine oriented in the nematic phase of anisole-azophenyl-n-capronate has been studied. The analysis has been carried out iteratively using a modified version of the computer programme LAOCOONII (re-named as LAOCOONOR). The details of the modification are discussed. The direct couplings are shown to be of negative sign. Ratios of the various inter-proton distances are determined irrespective of the orientation of the molecule. They agree within experimental error with the microwave results. © 1968 Taylor and Francis Group, LLC.