Research paperDeuteron and proton NMR study of D2, p-dichlorobenzene and 1,3,5-Trichlorobenzene (cas 108-70-3) in bimesogenic liquid crystals with two nematic phases

Add time:08/21/2019    Source:sciencedirect.com

The solutes dideuterium, 1,3,5-Trichlorobenzene (cas 108-70-3) and p-dichlorobenzene (pdcb) are co-dissolved in a 61/39 wt% mixture of CBC9CB/5CB, a bimesogenic liquid crystal with two nematic phases. NMR spectra are collected for each solute. The local electric field gradient (FZZ) is obtained from the dideuterium spectrum. A double Maier-Saupe potential (MSMS) is used to rationalize the order parameters of pdcb. The liquid-crystal fields G1 and G2 are taken to be due to size and shape interactions and interactions between the solute molecular quadrupole and the mean FZZ of the medium. The FZZ’s obtained from D2 and G2 (from pdcb) are compared and discussed.

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