Optical parameter measurements of a nO.m liquid crystalline compound

THINGUJAM, KIRANMALA ; Bhattacharjee, Ayon ; CHOUDHURY, BASANA ; ALAPATI, P R

Abstract

Differential scanning calorimetry (DSC) and density studies for a Schiff’s base liquid crystalline nO.m compound N (4 - n - hexyloxybenzylidine) 4´- m - hexylaniline (6O.6) have been carried out. Using the previously reported refractive index data and present density data, the molecular polarizability values for the sample have been obtained. Vuks’ method and Neugebauer’s method have been used to calculate the parallel and perpendicular components of molecular polarizabilities. The calculation of order parameters have been previously done using direct extrapolation method and modified Vuks’ method from the measured refractive indices. The order parameters of the sample have been calculated using the refractive indices and density values following Vuks’ method and Neugebauer’s method. The results obtained have been compared and analysed in detail.

Keyword(s)

Differential scanning calorimetry; nO.m;Molecular polarizability; Order parameter

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