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A temperature dependence study of small solutes in zero electric field gradient nematic liquid crystal mixtures

TitleA temperature dependence study of small solutes in zero electric field gradient nematic liquid crystal mixtures
Publication TypeJournal Article
Year of Publication1997
AuthorsChandrakumar, T, Burnell, EE
JournalMolecular Physics
Volume90
Pagination303-313
Date PublishedFeb
Type of ArticleArticle
ISBN Number0026-8976
KeywordsBIAXIAL SOLUTE, CONFORMATIONAL EQUILIBRIUM, INTERNAL-ROTATION, MOLECULES, NORMAL-BUTANE, orientational order, POTENTIAL FUNCTION, RAMAN-SPECTRA, SHAPE, SOLVENTS
Abstract

The temperature dependences of the proton nuclear magnetic resonance (NMR) spectra of the solutes 1,3,5-trichlorobenzene, metadichlorobenzene, orthodichlorobenzene, 1,3-bromochlorobenzene, benzene and 2-butyne have been studied in the special ’zero electric field gradient’ mixtures 55wt% 1132-N-(4-ethoxybenzylidene)-4’-n-butylaniline (EBBA) and 70wt% (4-n-pentyl)-4’-cyanobiphenyl-EBBA. The order parameter matrices obtained for each solute from an analysis of the NMR spectra indicate that the solutes experience a similar anisotropic potential in both mixtures.

URL<Go to ISI>://A1997WK75400001