Non-cylindrical symmetry of the ordering matrix of some spectroscopic probes in a lyotropic mesophase studied by2H N.M.R. spectroscopy

Abstract
Deuterium N.M.R. spectroscopy has been used to investigate the orientational ordering of perdeuteriated naphthalene and two perdeuteriated fluorescent probes (pyrene and perylene) dissolved in a discotic nematic micellar phase of potassium laurate/potassium chloride/decanol/water. The results show that the ordering tensors of these probes are not cylindrically symmetric.