Molecular dynamics in the nematic, SAand SCphases of8S5 and9S5 as studied by dielectric methods
- 1 January 1993
- journal article
- research article
- Published by Taylor & Francis in Liquid Crystals
- Vol. 14 (2) , 565-572
- https://doi.org/10.1080/02678299308027672
Abstract
Two experimental techniques—time domain spectroscopy (TDS) and a steady state frequency method—have been used to study dielectric spectra for the isotropic, nematic, SA, SC and SY phases of two thioesters (4-n-pentylphenyl-4′-n-octyloxy-and 4′-n-nonyloxythiobenzoates (C n H2n+1 O‒C6 H4‒COS‒C6H4‒C5H11, where n = 8 and n = 9) known as 8S5 and 9S5, in the frequency range from 10 Hz to 10 GHz. In the case of 8S5 a deuteriated sample (8S5-d 28) has been used to study relaxation processes in the nematic and smectic phases.Keywords
This publication has 14 references indexed in Scilit:
- Megahertz dielectric relaxation process in the nematic and smectic phases of two thiol esters (9S5 and10S5)Liquid Crystals, 1992
- Synthesis and mesomorphic properties of deuteriated 4,4′-di-n-aIkyloxyazoxybenzenes-d2(2n+1)Liquid Crystals, 1990
- Molecular Dynamics in the Nematic Phase of5S5 and6S5 as Studied by Dielectric MethodsMolecular Crystals and Liquid Crystals Incorporating Nonlinear Optics, 1990
- Low Frequency Dielectric Relaxation Behaviour at the N-SA and SA-SC Transitions of 8S5Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics, 1990
- Dielectric relaxation in the smectic- and smectic- phases of a ferroelectric liquid crystalPhysical Review A, 1989
- The phase behavior of two thiol esters (1̄2̄ S5 and 1̄4̄ S5)The Journal of Chemical Physics, 1982
- The Transition Temperatures of Some Deuteriated Liquid CrystalsMolecular Crystals and Liquid Crystals, 1977
- Transmission methods in dielectric time domain spectroscopyThe Journal of Physical Chemistry, 1977
- The Raman Spectra of 4-Cyano- 4′ -pentylbiphenyl and 4-Cyano-4′-pentyl-d 11-biphenylMolecular Crystals and Liquid Crystals, 1976
- Dielectric relaxation theory in nematic liquidsMolecular Physics, 1973