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An anionic two dimensional covalent organic framework from tetratopic borate centres pillared by lithium ions

Author

Listed:
  • Darosch Asgari

    (Technische Universität Berlin)

  • Julia Grüneberg

    (Technische Universität Berlin)

  • Yunkai Luo

    (University of California)

  • Hüseyin Küçükkeçeci

    (Technische Universität Berlin)

  • Samrat Ghosh

    (Technische Universität Berlin
    Central Leather Research Institute (CLRI))

  • Veniamin Chevelkov

    (Leibniz-Forschungsinstitut für Molekulare Pharmakologie)

  • Sabrina Fischer-Lang

    (Osnabrueck University)

  • Jérôme Roeser

    (Technische Universität Berlin)

  • Adam Lange

    (Leibniz-Forschungsinstitut für Molekulare Pharmakologie)

  • Bruce Dunn

    (University of California)

  • Michael Gradzielski

    (Technische Universität Berlin)

  • Arne Thomas

    (Technische Universität Berlin)

Abstract

Non-covalent interactions play an important role for the framework formation of two-dimensional covalent organic frameworks. Until now, π–π interactions and hydrogen bonding are the main reported forces facilitating the stacking of framework layers. Here, we present a two-dimensional anionic covalent organic framework based on tetratopic borate linkages, where layers are connected by ionic interactions between the linkage site and counter cations. The crystalline covalent organic framework is accessed through the formation of an amorphous borate-based polymer and subsequent solvothermal treatment. The progress of crystallization is investigated, revealing the crystallite growth and morphological change from agglomerated dense particles to hollow crystallite spheres. Due to the pillared nature, the crystallites can be exfoliated into nanosheets by sonication of the material in the presence of methanol. The crystallization and ordered arrangement of the lithium ions in the interlayer space is shown to benefit the conductivity tenfold compared to the amorphous material.

Suggested Citation

  • Darosch Asgari & Julia Grüneberg & Yunkai Luo & Hüseyin Küçükkeçeci & Samrat Ghosh & Veniamin Chevelkov & Sabrina Fischer-Lang & Jérôme Roeser & Adam Lange & Bruce Dunn & Michael Gradzielski & Arne Th, 2024. "An anionic two dimensional covalent organic framework from tetratopic borate centres pillared by lithium ions," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-50953-2
    DOI: 10.1038/s41467-024-50953-2
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    References listed on IDEAS

    as
    1. Xing Li & Qiang Gao & Juefan Wang & Yifeng Chen & Zhi-Hui Chen & Hai-Sen Xu & Wei Tang & Kai Leng & Guo-Hong Ning & Jishan Wu & Qing-Hua Xu & Su Ying Quek & Yixin Lu & Kian Ping Loh, 2018. "Tuneable near white-emissive two-dimensional covalent organic frameworks," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
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