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Enantioselectivity of discretized helical supramolecule consisting of achiral cobalt phthalocyanines via chiral-induced spin selectivity effect

Author

Listed:
  • Hiroki Aizawa

    (Institute for Molecular Science
    the Graduate University for Advanced Studies)

  • Takuro Sato

    (Institute for Molecular Science
    the Graduate University for Advanced Studies)

  • Saori Maki-Yonekura

    (Biostructural Mechanism Laboratory, RIKEN SPring-8 Center)

  • Koji Yonekura

    (Biostructural Mechanism Laboratory, RIKEN SPring-8 Center
    Tohoku University
    RIKEN Baton Zone Program)

  • Kiyofumi Takaba

    (Biostructural Mechanism Laboratory, RIKEN SPring-8 Center)

  • Tasuku Hamaguchi

    (Biostructural Mechanism Laboratory, RIKEN SPring-8 Center
    Tohoku University)

  • Taketoshi Minato

    (Institute for Molecular Science)

  • Hiroshi M. Yamamoto

    (Institute for Molecular Science
    the Graduate University for Advanced Studies)

Abstract

Enantioselectivity of helical aggregation is conventionally directed either by its homochiral ingredients or by introduction of chiral catalysis. The fundamental question, then, is whether helical aggregation that consists only of achiral components can obtain enantioselectivity in the absence of chiral catalysis. Here, by exploiting enantiospecific interaction due to chiral-induced spin selectivity (CISS) that has been known to work to enantio-separate a racemic mixture of chiral molecules, we demonstrate the enantioselectivity in the assembly of mesoscale helical supramolecules consisting of achiral cobalt phthalocyanines. The helical nature in our supramolecules is revealed to be mesoscopically incorporated by dislocation-induced discretized twists, unlike the case of chiral molecules whose chirality are determined microscopically by chemical bond. The relevance of CISS effect in the discretized helical supramolecules is further confirmed by the appearance of spin-polarized current through the system. These observations mean that the application of CISS-based enantioselectivity is no longer limited to systems with microscopic chirality but is expanded to the one with mesoscopic chirality.

Suggested Citation

  • Hiroki Aizawa & Takuro Sato & Saori Maki-Yonekura & Koji Yonekura & Kiyofumi Takaba & Tasuku Hamaguchi & Taketoshi Minato & Hiroshi M. Yamamoto, 2023. "Enantioselectivity of discretized helical supramolecule consisting of achiral cobalt phthalocyanines via chiral-induced spin selectivity effect," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40133-z
    DOI: 10.1038/s41467-023-40133-z
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    References listed on IDEAS

    as
    1. R. Nakajima & D. Hirobe & G. Kawaguchi & Y. Nabei & T. Sato & T. Narushima & H. Okamoto & H. M. Yamamoto, 2023. "Giant spin polarization and a pair of antiparallel spins in a chiral superconductor," Nature, Nature, vol. 613(7944), pages 479-484, January.
    2. Yin Liu & Jie Wang & Sujung Kim & Haoye Sun & Fuyi Yang & Zixuan Fang & Nobumichi Tamura & Ruopeng Zhang & Xiaohui Song & Jianguo Wen & Bo Z. Xu & Michael Wang & Shuren Lin & Qin Yu & Kyle B. Tom & Ya, 2019. "Helical van der Waals crystals with discretized Eshelby twist," Nature, Nature, vol. 570(7761), pages 358-362, June.
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