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Transformation between 2D and 3D Covalent Organic Frameworks via Reversible [2 + 2] Cycloaddition
Open accessAbstract
We report the first transformation between crystalline vinylene-linked two-dimensional (2D) polymers and crystalline cyclobutane-linked three-dimensional (3D) polymers. Specifically, absorption-edge irradiation of the 2D poly(arylenevinylene) covalent organic frameworks (COFs) results in topological [2+2] cycloaddition cross-linking the π-stacked layers in 3D COFs. The reaction is reversible and heating to 200°C leads to a cycloreversion while retaining the COF crystallinity. The resulting difference in connectivity is manifested in the change of mechanical and electronic properties, including exfoliation, blue-shifted UV-Vis absorption, altered luminescence, modified band structure and different acid-doping behavior. The Li-impregnated 2D and 3D COFs show a significant ion conductivity of 1.8×10−4 S/cm and 3.5×10−5 S/cm, respectively. Even higher room temperature proton conductivity of 1.7×10-2 S/cm and 2.2×10-3 S/cm was found for H2SO4-treated 2D and 3D COFs, respectively.
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Cites
Making Insoluble Polymer Networks Malleable via Olefin Metathesis
Lu, Y.-X., Tournilhac, F., Leibler, L., & Guan, Z. (2012) · Journal of the American Chemical Society · doi:10.1021/ja303356z · Cited by 568
Cited by
Liu, R., Tan, K. T., Gong, Y., Chen, Y., Li, Z., Xie, S., He, T., Lu, Z., Yang, H., & Jiang, D. (2021) · Chemical Society Reviews · doi:10.1039/d0cs00620c · Cited by 1,083
Metadata
- Authors
- Jadhav, T., Fang, Y., Liu, C.-H., Dadvand, A., Hamzehpoor, E., Patterson, W., Jonderian, A., Stein, R. S., & Perepichka, D. F.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-04-20
- Volume
- 142
- Issue
- 19
- Pages
- 8862-8870
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W3017015522
- Cited by
- 173
- References
- 1
- FWCI
- 9.14
- Type
- journal article
- Language
- en
- Open access
- green
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- Jadhav, T., Fang, Y., Liu, C.-H., Dadvand, A., Hamzehpoor, E., Patterson, W., Jonderian, A., Stein, R. S., & Perepichka, D. F. (2020). Transformation between 2D and 3D Covalent Organic Frameworks via Reversible [2 + 2] Cycloaddition. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.0c01990
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