Abstract
Several 2H NMR studies have been performed on two deuterium labelled banana-shaped liquid crystals, the 1,3-phenylene bis{4-4′-(11-undecenyloxy) benzoyloxy} benzoate (Pbis11BB) and its 4-chloro homologue (ClPbis11BB), in the isotropic, nematic and B2 phases.In this article, the state of the art of these studies is drawn and some new 2H NMR measurements on deuterated banana sub-units, namely the 3-(benzoyloxy)phenyl benzoate-d10 (BOB-d10) and its 4-chloro homologue (ClBOB-d10), used as small probes dissolved in two banana-shaped liquid crystals in the nematic phase are reported.As a general result, the orientational ordering properties of these sub-units are discussed in the frame of recent results obtained on the same banana-shaped liquid crystals dissolved in calamitic nematic solvents as well as in the bulk.
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