Orientational order in anisaldazine in the nametic phase

Abstract

The refractive indices of anisaldazine, CH₃OC₆H₄CH:NN:CHC₄H₄OCH₃, have been measured in the crystalline, nematic and isotropic phases and the orientational order parameter in the mesophase has been evaluated by the application of the Vuks formula. The curve for the order parameter versus the relative temperature (T_e-T) is nearly parallel with those for p-azoxyanisole and p-azoxyphenetole and lies approximately midway between them.