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An interpretation of NMR data of 4-ethoxy-4′-cyanobiphenyl in the nematic state-internal rotation around the O−CH2 bond

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Summary

Conformation of the ethoxy tail flanking the cyanobiphenyl core has been studied in the liquid-crystalline state. The compound exhibits a monotropic nematic phase at 91.9 °C. The2H NMR analysis indicates that the fraction of the trans conformer around the O−CH2 bond amounts to 0.79 at the temperature slightly below the isotropic-to-nematic transition point. The result was found to be consistent with those reported for some related compounds by Celebre et al.

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Authors and Affiliations

  1. Deprttment of Polymer Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, 152, Tokyo, Japan

    Noritaka Kimura & Akihiro Abe

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  1. Noritaka Kimura
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  2. Akihiro Abe
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Kimura, N., Abe, A. An interpretation of NMR data of 4-ethoxy-4′-cyanobiphenyl in the nematic state-internal rotation around the O−CH2 bond. Polymer Bulletin 28, 81–85 (1992). https://doi.org/10.1007/BF01045642

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  • DOI: https://doi.org/10.1007/BF01045642

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