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Assembling an alkyl rotor to access abrupt and reversible crystalline deformation of a cobalt(II) complex

Author

Listed:
  • Sheng-Qun Su

    (Institute for Materials Chemistry and Engineering, Kyushu University)

  • Takashi Kamachi

    (Institute for Materials Chemistry and Engineering, Kyushu University)

  • Zi-Shuo Yao

    (Institute for Materials Chemistry and Engineering, Kyushu University)

  • You-Gui Huang

    (Institute for Materials Chemistry and Engineering, Kyushu University)

  • Yoshihito Shiota

    (Institute for Materials Chemistry and Engineering, Kyushu University)

  • Kazunari Yoshizawa

    (Institute for Materials Chemistry and Engineering, Kyushu University)

  • Nobuaki Azuma

    (Research Center for Structural Thermodynamics, Graduate School of Science, Osaka University)

  • Yuji Miyazaki

    (Research Center for Structural Thermodynamics, Graduate School of Science, Osaka University)

  • Motohiro Nakano

    (Research Center for Structural Thermodynamics, Graduate School of Science, Osaka University)

  • Goro Maruta

    (Faculty of Science, Hokkaido University)

  • Sadamu Takeda

    (Faculty of Science, Hokkaido University)

  • Soonchul Kang

    (Institute for Materials Chemistry and Engineering, Kyushu University)

  • Shinji Kanegawa

    (Institute for Materials Chemistry and Engineering, Kyushu University)

  • Osamu Sato

    (Institute for Materials Chemistry and Engineering, Kyushu University)

Abstract

Harnessing molecular motion to reversibly control macroscopic properties, such as shape and size, is a fascinating and challenging subject in materials science. Here we design a crystalline cobalt(II) complex with an n-butyl group on its ligands, which exhibits a reversible crystal deformation at a structural phase transition temperature. In the low-temperature phase, the molecular motion of the n-butyl group freezes. On heating, the n-butyl group rotates ca. 100° around the C–C bond resulting in 6–7% expansion of the crystal size along the molecular packing direction. Importantly, crystal deformation is repeatedly observed without breaking the single-crystal state even though the shape change is considerable. Detailed structural analysis allows us to elucidate the underlying mechanism of this deformation. This work may mark a step towards converting the alkyl rotation to the macroscopic deformation in crystalline solids.

Suggested Citation

  • Sheng-Qun Su & Takashi Kamachi & Zi-Shuo Yao & You-Gui Huang & Yoshihito Shiota & Kazunari Yoshizawa & Nobuaki Azuma & Yuji Miyazaki & Motohiro Nakano & Goro Maruta & Sadamu Takeda & Soonchul Kang & S, 2015. "Assembling an alkyl rotor to access abrupt and reversible crystalline deformation of a cobalt(II) complex," Nature Communications, Nature, vol. 6(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9810
    DOI: 10.1038/ncomms9810
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    Cited by:

    1. Ji-Xiang Hu & Qi Li & Hai-Lang Zhu & Zhen-Ni Gao & Qian Zhang & Tao Liu & Guo-Ming Wang, 2022. "Achieving large thermal hysteresis in an anthracene-based manganese(II) complex via photo-induced electron transfer," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. Durga Prasad Karothu & Rodrigo Ferreira & Ghada Dushaq & Ejaz Ahmed & Luca Catalano & Jad Mahmoud Halabi & Zainab Alhaddad & Ibrahim Tahir & Liang Li & Sharmarke Mohamed & Mahmoud Rasras & Panče Naumo, 2022. "Exceptionally high work density of a ferroelectric dynamic organic crystal around room temperature," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    3. Daniel William Davies & Bumjoon Seo & Sang Kyu Park & Stephen B. Shiring & Hyunjoong Chung & Prapti Kafle & Dafei Yuan & Joseph W. Strzalka & Ralph Weber & Xiaozhang Zhu & Brett M. Savoie & Ying Diao, 2023. "Unraveling two distinct polymorph transition mechanisms in one n-type single crystal for dynamic electronics," Nature Communications, Nature, vol. 14(1), pages 1-14, December.

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