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Engineering Screw Dislocations in Covalent Organic Frameworks

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    Engineering Screw Dislocations in Covalent Organic Frameworks
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    • Bhausaheb Dhokale
      Bhausaheb Dhokale
      Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
      More by Bhausaheb Dhokale
      Orcidhttps://orcid.org/0000-0001-7520-4727
    • Kira Coe-Sessions
      Kira Coe-Sessions
      Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
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    • Michael J. Wenzel
      Michael J. Wenzel
      Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
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    • Alathea E. Davies
      Alathea E. Davies
      Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
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    • Taylor Kelsey
      Taylor Kelsey
      Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
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    • Jonathan A. Brant
      Jonathan A. Brant
      Department of Civil Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
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    • Laura de Sousa Oliveira
      Laura de Sousa Oliveira
      Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
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    • Bruce A. Parkinson
      Bruce A. Parkinson
      Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
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      Orcidhttps://orcid.org/0000-0002-8950-1922
    • John O. Hoberg*
      John O. Hoberg
      Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
      *E-mail: [email protected]
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      Orcidhttps://orcid.org/0000-0003-3833-8122
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    Journal of the American Chemical Society

    Cite this: J. Am. Chem. Soc. 2024, XXXX, XXX, XXX-XXX
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    https://doi.org/10.1021/jacs.4c07859
    Published September 20, 2024
    © 2024 American Chemical Society
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    Abstract

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    We report the application of a Pictet-Spengler reaction to the synthesis of covalent organic frameworks (COFs) using functionalized terephthalaldehydes. The COFs produced show an increased propensity to generate screw dislocations and produce multilayered flakes when compared with other 2D-COFs. Using HRTEM, definitive evidence for screw dislocations was obtained and is presented. The effects on separations using these materials in membranes are also reported.

    © 2024 American Chemical Society

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/jacs.4c07859.

    • All experimental and characterization data for the synthesis of starting monomers and COFs, including mass spectrometry, NMR, IR, XRD, TEM data, DSC-TGA, and computational methods (PDF)

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    CCDC 2359077 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge via www.ccdc.cam.ac.uk/data_request/cif., or by emailing [email protected], or by contacting the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK; fax: +44 1223 336 033.

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    Journal of the American Chemical Society

    Cite this: J. Am. Chem. Soc. 2024, XXXX, XXX, XXX-XXX
    Click to copy citationCitation copied!
    https://doi.org/10.1021/jacs.4c07859
    Published September 20, 2024
    © 2024 American Chemical Society
    Request reuse permissions

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