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Molecular orientation of hydrogen-bonded liquid crystal (6BA)2-(BPy) x as Studied by 2H NMR

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Abstract

The thermal properties of hydrogen-bonded liquid crystal (6BA)2-(BPy)x (6BA: 4-n-hexylbenzoicacid, BPy: 4,4’-bipyridine) were investigated by DSC. Two liquid crystal phases (LCI, LCII) were found for (6BA)2-(BPy)0.5. In LCII, the distribution of the orientation of molecules was larger than in LCI. The order parameter S of molecular orientation in the liquid crystal phase was estimated from a 2H NMR spectrum. S decreased rapidly around the LCI-LCII phase transition. The increase in orientational fluctuation of the 6BA dimer with an open dimer structure is predicted to cause the rapid decrease of S.

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Authors and Affiliations

  1. Department of Chemistry, Graduate School of Natural Science & Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa, 920-1192, Japan

    M. Mizuno, Y. Higashima, A. Yamashita, Y. Ishida, T. Miyatou, Y. Kumagai, R. Ohashi & T. Ida

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  1. M. Mizuno
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  2. Y. Higashima
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  3. A. Yamashita
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  4. Y. Ishida
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  5. T. Miyatou
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  6. Y. Kumagai
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  7. R. Ohashi
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  8. T. Ida
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Correspondence to M. Mizuno.

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Proceedings of the 5th Joint International Conference on Hyperfine Interactions and International Symposium on Nuclear Quadrupole Interactions (HFI/NQI 2014), Canberra, Australia, 21–26 September 2014

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Mizuno, M., Higashima, Y., Yamashita, A. et al. Molecular orientation of hydrogen-bonded liquid crystal (6BA)2-(BPy) x as Studied by 2H NMR. Hyperfine Interact 230, 89–94 (2015). https://doi.org/10.1007/s10751-014-1080-1

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  • DOI: https://doi.org/10.1007/s10751-014-1080-1

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