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Multiple-stimuli fluorescent responsive metallo-organic helicated cage arising from monomer and excimer emission

Author

Listed:
  • Zhe Zhang

    (Guangzhou University)

  • Qixia Bai

    (Guangzhou University)

  • Zirui Zhai

    (Guangzhou University)

  • Qingwu Long

    (Shunde Polytechnic)

  • Ermeng Han

    (Central South University)

  • He Zhao

    (Central South University)

  • Chuang-Wei Zhou

    (Jinan University)

  • Haobo Lin

    (Guangzhou University)

  • Wei Zhang

    (Guangzhou University)

  • Guo-Hong Ning

    (Jinan University)

  • Ting-Zheng Xie

    (Guangzhou University)

  • Pingshan Wang

    (Guangzhou University)

  • Tun Wu

    (Guangzhou University)

Abstract

Effectively regulating monomer and excimer emission in a singular supramolecular luminous platform is challenging due to high difficulty of precise control over its aggregation and dispersion behavior when subjected to external stimuli. Here, we show a metallo-cage (MTH) featuring a triple helical motif that displays a unique dual emission. It arises from both intramolecular monomer and intermolecular excimer, respectively. The distorted molecular conformation and the staggered stacking mode of MTH excimer are verified through single crystal X-ray diffraction analysis. These structural features facilitate the switch between monomer and excimer emission, which are induced by changes in concentration and temperature. Significantly, adjusting the equilibrium between these two states in MTH enables the production of vibrant white light emission in both solution and solid state. Moreover, when combined with a PMMA (polymethyl methacrylate) substrate, the resulting thin films can serve as straightforward fluorescence thermometer and thermally activated information encryption materials.

Suggested Citation

  • Zhe Zhang & Qixia Bai & Zirui Zhai & Qingwu Long & Ermeng Han & He Zhao & Chuang-Wei Zhou & Haobo Lin & Wei Zhang & Guo-Hong Ning & Ting-Zheng Xie & Pingshan Wang & Tun Wu, 2024. "Multiple-stimuli fluorescent responsive metallo-organic helicated cage arising from monomer and excimer emission," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-51792-x
    DOI: 10.1038/s41467-024-51792-x
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    References listed on IDEAS

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    1. Huibin Sun & Shujuan Liu & Wenpeng Lin & Kenneth Yin Zhang & Wen Lv & Xiao Huang & Fengwei Huo & Huiran Yang & Gareth Jenkins & Qiang Zhao & Wei Huang, 2014. "Smart responsive phosphorescent materials for data recording and security protection," Nature Communications, Nature, vol. 5(1), pages 1-9, May.
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