A New Phase in p -n-Hexyloxybenzylidene-Amino- p '-Chlorobenzene
- 1 November 1977
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 41 (4) , 81-87
- https://doi.org/10.1080/01406567708071959
Abstract
The heat capacity of p-n-hexyloxy-benzylideneamino-p'-chlorobenzene (abbreviated as HBAC) was measured in the temperature range 15 to 385 K by an adiabatic calorimeter. A new phase was discovered between the crystal and the smectic B phase. Transition temperatures, enthalpies and entropies of the transitions are as follows: Ttr =327.70 K, ΔHtr=10.88 kJ mol-l, and AStr=33.2 J K-1 mol-1 for the crystal-the new phase transition and Ttr=333.90 K, ΔHtr =12.35 kJ mol-l, and ΔStr= 37.0 J K-1 mol-1 for the new phase-the smectic B phase transition, respectively.Keywords
This publication has 2 references indexed in Scilit:
- A Line Notation for Thermotropic Liquid Crystal Phase TransitionsMolecular Crystals and Liquid Crystals, 1971
- Effects of molecular geometry formation of smectic phasesSymposia of the Faraday Society, 1971