NMR of deuterium in liquid crystal mixtures

Deuterium NMR spectra of D 2 dissolved in mixtures of the nematic liquid crystals N-( p-ethoxybenzylidene)- p′- n-butyl-aniline and Merck ZLI 1132 are discussed in terms of a theory based on the interaction of the molecular quadrupole moment with the average electric field gradient. The average fiel...

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Bibliographic Details
Published in:Chemical physics letters 1984-01, Vol.107 (4), p.426-430
Main Authors: Barker, P.B., van der Est, A.J., Burnell, E.E., Patey, G.N., de Lange, C.A., Snijders, J.G.
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Exact sciences and technology
Molecular properties and interactions with photons
Nuclear resonance and relaxation
Physics
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Summary:Deuterium NMR spectra of D 2 dissolved in mixtures of the nematic liquid crystals N-( p-ethoxybenzylidene)- p′- n-butyl-aniline and Merck ZLI 1132 are discussed in terms of a theory based on the interaction of the molecular quadrupole moment with the average electric field gradient. The average field gradient depends upon the liquid crystal composition and hence can be adjusted to various values (including zero) between those of the pure liquid crystals. It is shown that for deuterium dissolved in these phases the molecular quadrupole—average field gradient mechanism can account for most but not all of the orientational ordering.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(84)80248-1