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Facile construction of fully sp2-carbon conjugated two-dimensional covalent organic frameworks containing benzobisthiazole units

Author

Listed:
  • Yuancheng Wang

    (Qingdao University of Science and Technology)

  • Wenbo Hao

    (Qingdao University of Science and Technology)

  • Hui Liu

    (Qingdao University of Science and Technology)

  • Renzeng Chen

    (Qingdao University of Science and Technology)

  • Qingyan Pan

    (Qingdao University of Science and Technology)

  • Zhibo Li

    (Qingdao University of Science and Technology)

  • Yingjie Zhao

    (Qingdao University of Science and Technology)

Abstract

Developing a facile strategy for the construction of vinylene-linked fully π-conjugated covalent organic frameworks (COFs) remains a huge challenge. Here, a versatile condition of Knoevenagel polycondensation for constructing vinylene-linked 2D COFs was explored. Three new examples of vinylene-linked 2D COFs (BTH-1, 2, 3) containing benzobisthiazoles units as functional groups were successfully prepared under this versatile and mild condition. The electron-deficient benzobisthiazole units and cyano-vinylene linkages were both integrated into the π conjugated COFs skeleton and acted as acceptor moieties. Interestingly, we found the construction of a highly ordered and conjugated D-A system is favorable for photocatalytic activity. BTH-3 with benzotrithiophene as the donor with a strong D-A effect exhibited an attractive photocatalytic HER of 15.1 mmol h−1g−1 under visible light irradiation.

Suggested Citation

  • Yuancheng Wang & Wenbo Hao & Hui Liu & Renzeng Chen & Qingyan Pan & Zhibo Li & Yingjie Zhao, 2022. "Facile construction of fully sp2-carbon conjugated two-dimensional covalent organic frameworks containing benzobisthiazole units," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-021-27573-1
    DOI: 10.1038/s41467-021-27573-1
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    Cited by:

    1. Weijun Weng & Jia Guo, 2022. "The effect of enantioselective chiral covalent organic frameworks and cysteine sacrificial donors on photocatalytic hydrogen evolution," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    2. Zhongshan Chen & Jingyi Wang & Mengjie Hao & Yinghui Xie & Xiaolu Liu & Hui Yang & Geoffrey I. N. Waterhouse & Xiangke Wang & Shengqian Ma, 2023. "Tuning excited state electronic structure and charge transport in covalent organic frameworks for enhanced photocatalytic performance," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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