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Secondary through-space interactions facilitated single-molecule white-light emission from clusteroluminogens

Author

Listed:
  • Jianyu Zhang

    (The Hong Kong University of Science and Technology)

  • Parvej Alam

    (The Hong Kong University of Science and Technology)

  • Siwei Zhang

    (The Hong Kong University of Science and Technology)

  • Hanchen Shen

    (The Hong Kong University of Science and Technology)

  • Lianrui Hu

    (The Hong Kong University of Science and Technology)

  • Herman H. Y. Sung

    (The Hong Kong University of Science and Technology)

  • Ian D. Williams

    (The Hong Kong University of Science and Technology)

  • Jianwei Sun

    (The Hong Kong University of Science and Technology)

  • Jacky W. Y. Lam

    (The Hong Kong University of Science and Technology)

  • Haoke Zhang

    (Zhejiang University
    ZJU-Hangzhou Global Scientific and Technological Innovation Center
    South China University of Technology)

  • Ben Zhong Tang

    (The Hong Kong University of Science and Technology
    South China University of Technology
    The Chinese University of Hong Kong)

Abstract

Clusteroluminogens refer to some non-conjugated molecules that show visible light and unique electronic properties with through-space interactions due to the formation of aggregates. Although mature and systematic theories of molecular photophysics have been developed to study conventional conjugated chromophores, it is still challenging to endow clusteroluminogens with designed photophysical properties by manipulating through-space interactions. Herein, three clusteroluminogens with non-conjugated donor-acceptor structures and different halide substituents are designed and synthesized. These compounds show multiple emissions and even single-molecule white-light emission in the crystalline state. The intensity ratio of these emissions is easily manipulated by changing the halide atom and excitation wavelength. Experimental and theoretical results successfully disclose the electronic nature of these multiple emissions: through-space conjugation for short-wavelength fluorescence, through-space charge transfer based on secondary through-space interactions for long-wavelength fluorescence, and room-temperature phosphorescence. The introduction of secondary through-space interactions to clusteroluminogens not only enriches their varieties of photophysical properties but also inspires the establishment of novel aggregate photophysics for clusteroluminescence.

Suggested Citation

  • Jianyu Zhang & Parvej Alam & Siwei Zhang & Hanchen Shen & Lianrui Hu & Herman H. Y. Sung & Ian D. Williams & Jianwei Sun & Jacky W. Y. Lam & Haoke Zhang & Ben Zhong Tang, 2022. "Secondary through-space interactions facilitated single-molecule white-light emission from clusteroluminogens," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
  • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31184-9
    DOI: 10.1038/s41467-022-31184-9
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    Cited by:

    1. Bo Song & Jianyu Zhang & Jiadong Zhou & Anjun Qin & Jacky W. Y. Lam & Ben Zhong Tang, 2023. "Facile conversion of water to functional molecules and cross-linked polymeric films with efficient clusteroluminescence," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    2. Jiayu Wu & Yuhuan Wang & Pan Jiang & Xiaolong Wang & Xin Jia & Feng Zhou, 2024. "Multiple hydrogen-bonding induced nonconventional red fluorescence emission in hydrogels," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    3. Yipu Wang & Jianyu Zhang & Qingyang Xu & Weihao Tu & Lei Wang & Yuan Xie & Jing Zhi Sun & Feihe Huang & Haoke Zhang & Ben Zhong Tang, 2024. "Narrowband clusteroluminescence with 100% quantum yield enabled by through-space conjugation of asymmetric conformation," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    4. Qiuju Li & Xingyi Wang & Qisu Huang & Zhuo Li & Ben Zhong Tang & Shun Mao, 2023. "Molecular-level enhanced clusterization-triggered emission of nonconventional luminophores in dilute aqueous solution," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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