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Achieving large thermal hysteresis in an anthracene-based manganese(II) complex via photo-induced electron transfer

Author

Listed:
  • Ji-Xiang Hu

    (Qingdao University)

  • Qi Li

    (Qingdao University)

  • Hai-Lang Zhu

    (Dalian University of Technology)

  • Zhen-Ni Gao

    (Qingdao University)

  • Qian Zhang

    (Qingdao University)

  • Tao Liu

    (Dalian University of Technology)

  • Guo-Ming Wang

    (Qingdao University)

Abstract

Achieving magnetic bistability with large thermal hysteresis is still a formidable challenge in material science. Here we synthesize a series of isostructural chain complexes using 9,10-anthracene dicarboxylic acid as a photoactive component. The electron transfer photochromic Mn2+ and Zn2+ compounds with photogenerated diradicals are confirmed by structures, optical spectra, magnetic analyses, and density functional theory calculations. For the Mn2+ analog, light irradiation changes the spin topology from a single Mn2+ ion to a radical-Mn2+ single chain, further inducing magnetic bistability with a remarkably wide thermal hysteresis of 177 K. Structural analysis of light irradiated crystals at 300 and 50 K reveals that the rotation of the anthracene rings changes the Mn1–O2–C8 angle and coordination geometries of the Mn2+ center, resulting in magnetic bistability with this wide thermal hysteresis. This work provides a strategy for constructing molecular magnets with large thermal hysteresis via electron transfer photochromism.

Suggested Citation

  • 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.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-30425-1
    DOI: 10.1038/s41467-022-30425-1
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    1. 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.
    2. Xiao-Qing Yu & Cai Sun & Bin-Wen Liu & Ming-Sheng Wang & Guo-Cong Guo, 2020. "Directed self-assembly of viologen-based 2D semiconductors with intrinsic UV–SWIR photoresponse after photo/thermo activation," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
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