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Sub-stoichiometric 2D covalent organic frameworks from tri- and tetratopic linkers

Author

Listed:
  • Tanmay Banerjee

    (Max Planck Institute for Solid State Research)

  • Frederik Haase

    (Max Planck Institute for Solid State Research
    University of Munich (LMU)
    Kyoto University)

  • Stefan Trenker

    (University of Munich (LMU)
    Cluster of Excellence e-conversion)

  • Bishnu P. Biswal

    (Max Planck Institute for Solid State Research)

  • Gökcen Savasci

    (Max Planck Institute for Solid State Research
    University of Munich (LMU))

  • Viola Duppel

    (Max Planck Institute for Solid State Research)

  • Igor Moudrakovski

    (Max Planck Institute for Solid State Research)

  • Christian Ochsenfeld

    (Max Planck Institute for Solid State Research
    University of Munich (LMU)
    Center for Nanoscience)

  • Bettina V. Lotsch

    (Max Planck Institute for Solid State Research
    University of Munich (LMU)
    Cluster of Excellence e-conversion
    Center for Nanoscience)

Abstract

Covalent organic frameworks (COFs) are typically designed by breaking down the desired network into feasible building blocks - either simple and highly symmetric, or more convoluted and thus less symmetric. The linkers are chosen complementary to each other such that an extended, fully condensed network structure can form. We show not only an exception, but a design principle that allows breaking free of such design rules. We show that tri- and tetratopic linkers can be combined to form imine-linked [4 + 3] sub-stoichiometric 2D COFs featuring an unexpected bex net topology, and with periodic uncondensed amine functionalities which enhance CO2 adsorption, can be derivatized in a subsequent reaction, and can also act as organocatalysts. We further extend this class of nets by including a ditopic linker to form [4 + 3 + 2] COFs. The results open up possibilities towards a new class of sub-valent COFs with unique structural, topological and compositional complexities for diverse applications.

Suggested Citation

  • Tanmay Banerjee & Frederik Haase & Stefan Trenker & Bishnu P. Biswal & Gökcen Savasci & Viola Duppel & Igor Moudrakovski & Christian Ochsenfeld & Bettina V. Lotsch, 2019. "Sub-stoichiometric 2D covalent organic frameworks from tri- and tetratopic linkers," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10574-6
    DOI: 10.1038/s41467-019-10574-6
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    Cited by:

    1. Wenyan Ji & Pai Zhang & Guangyuan Feng & Yuan-Zhe Cheng & Tian-Xiong Wang & Daqiang Yuan & Ruitao Cha & Xuesong Ding & Shengbin Lei & Bao-Hang Han, 2023. "Synthesis of a covalent organic framework with hetero-environmental pores and its medicine co-delivery application," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Dongyang Zhu & Yifan Zhu & Yu Chen & Qianqian Yan & Han Wu & Chun-Yen Liu & Xu Wang & Lawrence B. Alemany & Guanhui Gao & Thomas P. Senftle & Yongwu Peng & Xiaowei Wu & Rafael Verduzco, 2023. "Three-dimensional covalent organic frameworks with pto and mhq-z topologies based on Tri- and tetratopic linkers," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    3. Shu-Yan Jiang & Zhi-Bei Zhou & Shi-Xian Gan & Ya Lu & Chao Liu & Qiao-Yan Qi & Jin Yao & Xin Zhao, 2024. "Creating amphiphilic porosity in two-dimensional covalent organic frameworks via steric-hindrance-mediated precision hydrophilic-hydrophobic microphase separation," Nature Communications, Nature, vol. 15(1), pages 1-7, December.

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