Formation of a Homo Double Helix of a Conjugated Polymer with Carboxy Groups and Amplification of the Macromolecular Helicity by Chiral Amines Sandwiched between the Strands

Authors

  • Wataru Makiguchi,

    1. Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603 (Japan)
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  • Dr. Shinzo Kobayashi,

    1. Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603 (Japan)
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  • Dr. Yoshio Furusho,

    1. Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603 (Japan)
    2. Present address: Molecular Engineering Institute, Kinki University, Kayanomori, Iizuka, Fukuoka 820-8555 (Japan)
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  • Prof. Dr. Eiji Yashima

    Corresponding author
    1. Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603 (Japan)
    • Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603 (Japan)
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  • This work was supported in part by a Grant-in-Aid for Scientific Research (S) from the Japan Society for the Promotion of Science (JSPS), Japan Science and Technology Agency (JST), and for Scientific Research on Innovative Areas, “Emergence in Chemistry” (21111508) from the MEXT.

Abstract

original image

Sandwiched amines: A π-conjugated polymer with carboxy groups self-associates to form a racemic double helix. In contrast, with chiral amines it forms a unique one-handed double helix, in which the strands sandwich pairs of chiral amines through cyclic hydrogen-bonding networks (see picture). The chiral information of the amines is transferred to the polymer backbones with remarkable amplification of the helical chirality.

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