EPR Study of the Molecular Ordering in the Liquid Crystal: HBT

Abstract

Ordering of molecules is observed in the nematic and smetic-B phases of the liquid crystal HBT below 74 °C. In the Sb phase there is a considerable decrease in the intensity without increase in the width of the EPR lines. This unusual behaviour is believed to be due to a order-disorder state with layers coupled by strong forces

Molecular spectroscopy and adverse optical properties of N-(p-hexyloxy-benzylidene)–p-toluidine (HBT) liquid crystal molecule studied by DFT methodology

“…The order parameter calculated under the influence of an external electric field by the mathematical equation (1). Rao et al [17] reported with an increment of the magnetic field, the order parameter increases. The nematic to the smectic phase transition, the order parameter decreases in the present work; the order parameter decreases from nematic to smectic phase transition shown in figure 1.…”

“…[14][15][16]. Rao et al [17] reported with an increment of the magnetic field, the order parameter increases. The nematic to the smectic phase transition, the order parameter decreases.…”

Specific Volume and Ultrasonic Velocity Studies of the Liquid Crystal N-(p-n-hexyloxybenzylidene)-p-n-butylaniline (Hx BBA)

“…Existing controversies in this series [2][3][4][5] have induced us to reexamine the phase transitions of the liquid crystal N-(p-n-hexyloxybenzylidene)-p-n-butylaniline (H V BBA). For our previous studies on liquid crystals cf.…”