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Four compounds with the general structure R‒X‒Y‒CH2‒CH2‒Ph‒CF3 were synthesized, where X is a 1,4 disubstituted trans-cyclohexyl ring, Y is a phenyl ring, and R is a n-alkyl group. The synthetic procedure is discussed and the structural assignments were confirmed by NMR spectroscopy. The liquid crystal behavior of these compounds was evaluated by DSC and polarizing microscopy. They might be used in fast switching liquid crystal mixtures.
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Liang et al. (1989) studied this question.
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