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Emerging Two-Dimensional Crystallization of Cucurbit[8]uril Complexes: From Supramolecular Polymers to Nanofibers

[Image: see text] The binding of imidazolium salts to cucurbit[8]uril, CB[8], triggers a stepwise self-assembly process with semiflexible polymer chains and crystalline nanostructures as early- and late-stage species, respectively. In such a process, which involves the crystallization of the host–gu...

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Detalles Bibliográficos
Autores principales: Barrio, Jesús del, Liu, Ji, Brady, Ryan A., Tan, Cindy S. Y., Chiodini, Stefano, Ricci, Maria, Fernández-Leiro, Rafael, Tsai, Ching-Ju, Vasileiadi, Panagiota, Di Michele, Lorenzo, Lairez, Didier, Toprakcioglu, Chris, Scherman, Oren A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6772898/
https://www.ncbi.nlm.nih.gov/pubmed/31422657
http://dx.doi.org/10.1021/jacs.9b07506
Descripción
Sumario:[Image: see text] The binding of imidazolium salts to cucurbit[8]uril, CB[8], triggers a stepwise self-assembly process with semiflexible polymer chains and crystalline nanostructures as early- and late-stage species, respectively. In such a process, which involves the crystallization of the host–guest complexes, the guest plays a critical role in directing self-assembly toward desirable morphologies. These include platelet-like aggregates and two-dimensional (2D) fibers, which, moreover, exhibit viscoelastic and lyotropic properties. Our observations provide a deeper understanding of the self-assembly of CB[8] complexes, with fundamental implications in the design of functional 2D systems and crystalline materials.