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Ratchet-free solid-state inertial rotation of a guest ball in a tight tubular host

Author

Listed:
  • Taisuke Matsuno

    (The University of Tokyo
    Isobe Degenerate π-Integration Project)

  • Yusuke Nakai

    (Tokyo Metropolitan University)

  • Sota Sato

    (The University of Tokyo
    Isobe Degenerate π-Integration Project)

  • Yutaka Maniwa

    (Tokyo Metropolitan University)

  • Hiroyuki Isobe

    (The University of Tokyo
    Isobe Degenerate π-Integration Project)

Abstract

Dynamics of molecules in the solid state holds promise for connecting molecular behaviors with properties of bulk materials. Solid-state dynamics of [60]fullerene (C60) is controlled by intimate intermolecular contacts and results in restricted motions of a ratchet phase at low temperatures. Manipulation of the solid-state dynamics of fullerene molecules is thus an interesting yet challenging problem. Here we show that a tubular host for C60 liberates the solid-state dynamics of the guest from the motional restrictions. Although the intermolecular contacts between the host and C60 were present to enable a tight association with a large energy gain of –14 kcal mol–1, the dynamic rotations of C60 were simultaneously enabled by a small energy barrier of +2 kcal mol–1 for the reorientation. The solid-state rotational motions reached a non-Brownian, inertial regime with an extremely rapid rotational frequency of 213 GHz at 335 K.

Suggested Citation

  • Taisuke Matsuno & Yusuke Nakai & Sota Sato & Yutaka Maniwa & Hiroyuki Isobe, 2018. "Ratchet-free solid-state inertial rotation of a guest ball in a tight tubular host," Nature Communications, Nature, vol. 9(1), pages 1-5, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04325-2
    DOI: 10.1038/s41467-018-04325-2
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