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Toward azo-linked covalent organic frameworks by developing linkage chemistry via linker exchange

Author

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  • Zhi-Bei Zhou

    (Chinese Academy of Sciences)

  • Peng-Ju Tian

    (Chinese Academy of Sciences)

  • Jin Yao

    (Chinese Academy of Sciences)

  • Ya Lu

    (Chinese Academy of Sciences)

  • Qiao-Yan Qi

    (Chinese Academy of Sciences)

  • Xin Zhao

    (Chinese Academy of Sciences)

Abstract

Exploring new linkage chemistry for covalent organic frameworks (COFs) provides a strong driving force to promote the development of this emerging class of crystalline porous organic materials. Herein we report a strategy to synthesize COFs with azo linkage, one of the most important functional unit in materials science but having not yet been exploited as a linkage of COFs. This strategy is developed on the basis of in situ linker exchange, by which imine-linked COFs are completely transformed into azo-linked COFs (Azo-COFs). Moreover, distinct properties of Azo-COFs from their corresponding imine-linked precursors are observed, indicating unique property of Azo-COFs. This strategy provides a useful approach to develop new linkage chemistry for COFs. It also has established a synthetic method for azo-linked COFs, which not only enriches the family of COFs but also offers a platform to explore properties and applications of this class of crystalline porous conjugated polymers.

Suggested Citation

  • Zhi-Bei Zhou & Peng-Ju Tian & Jin Yao & Ya Lu & Qiao-Yan Qi & Xin Zhao, 2022. "Toward azo-linked covalent organic frameworks by developing linkage chemistry via linker exchange," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29814-3
    DOI: 10.1038/s41467-022-29814-3
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    References listed on IDEAS

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    1. Qianrong Fang & Zhongbin Zhuang & Shuang Gu & Robert B. Kaspar & Jie Zheng & Junhua Wang & Shilun Qiu & Yushan Yan, 2014. "Designed synthesis of large-pore crystalline polyimide covalent organic frameworks," Nature Communications, Nature, vol. 5(1), pages 1-8, December.
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    Cited by:

    1. Yanghui Hou & Peng Zhou & Fuyang Liu & Ke Tong & Yanyu Lu & Zhengmao Li & Jialiang Liang & Meiping Tong, 2024. "Rigid covalent organic frameworks with thiazole linkage to boost oxygen activation for photocatalytic water purification," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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