Temperature dependence of Raman scattering from monocrystalline terephtal-bis-butyl-aniline (TBBA): Low-frequency spectra
- 1 October 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 14 (4), 1555-1560
- https://doi.org/10.1103/physreva.14.1555
Abstract
Raman spectroscopy gives us a very useful tool for studying the vibrational dynamics of liquid crystals and, in particular, their structural phase changes. In order to investigate lattice mode nature of the structure sensitive low- and very low-frequency intermolecular modes of TBBA (terephtal-bis-butyl-aniline), we have studied the polarized Raman spectra from oriented monocrystals, and have followed the temperature dependence of such spectra from 90 to 300°K. The reported results are interpreted on the basis of a proposed dynamical model involving rotational Brownian motions in the crystalline phases.Keywords
This publication has 9 references indexed in Scilit:
- Polymorphism of the Mesomorphic Compound Terephthal-bis-Butylaniline (TBBA)Physical Review Letters, 1974
- Raman spectra of the smectic and nematic liquid crystal TBBAJournal de Physique Lettres, 1974
- Nuclear magnetic resonance studies of smectic liquid crystalsThe Journal of Chemical Physics, 1973
- Raman Spectral Evidence for Conformational Changes in the Liquid-Crystal Homologous Series of the AlkoxyazoxybenzenesPhysical Review Letters, 1972
- Raman Scattering from Nematic Liquid-Crystalline AzoxybenzenesThe Journal of Chemical Physics, 1972
- Crystal to Liquid-Crystal Transition Studied by Raman ScatteringPhysical Review Letters, 1971
- Vibrational Spectra of Liquid Crystals. II. The Raman Spectrum of p-Azoxyanisole in Crystal, Nematic, and Isotropic Phases, 10–100-cm−1 RegionThe Journal of Chemical Physics, 1971
- Characterization of Liquid Crystals: The Low Frequency Raman Scattering of Cholesteryl Propionate Nonanoate and PalmitateMolecular Crystals and Liquid Crystals, 1971
- Raman Study of Para-Azoxydianisole at the Phase TransitionsPhysical Review Letters, 1970