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Implementing Mesoporosity in Zeolitic Imidazolate Frameworks through Clip-Off Chemistry in Heterometallic Iron-Zinc ZIF-8
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Implementing Mesoporosity in Zeolitic Imidazolate Frameworks through Clip-Off Chemistry in Heterometallic Iron-Zinc ZIF-8
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| León-Alcaide, Luis; López Cabrelles, Javier; Esteve-Rochina, María; Ortí Guillén, Enrique; Calbo Roig, Joaquín; Huisman, Bas A. H.; Sessolo, Michele; Waerenborgh, João C.; Vieira, Bruno J. C.; Mínguez Espallargas, Guillermo | |||
| Aquest document és un/a article, creat/da en: 2023 | |||
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| Bond breaking has emerged as a new tool to postsynthetically modify the pore structure in metal-organic frameworks since it allows us to obtain pore environments in structures that are inaccessible by other techniques. Here, we extend the concept of clip-off chemistry to archetypical ZIF-8, taking advantage of the different stabilities of the bonds between imidazolate and Zn and Fe metal atoms in heterometallic Fe-Zn-ZIF-8. We demonstrate that Fe centers can be removed selectively without affecting the backbone of the structure that is supported by the Zn atoms. This allows us to create mesopores within the highly stable ZIF-8 structure. The strategy presented, combined with control of the amount of iron centers incorporated into the structure, permits porosity engineering of ZIF materials and opens a new avenue for designing novel hierarchical porous frameworks. | |||
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León-Alcaide, Luis López Cabrelles, Javier Esteve-Rochina, María Ortí Guillén, Enrique Calbo Roig, Joaquín Huisman, Bas A. H. Sessolo, Michele Waerenborgh, João C. Vieira, Bruno J. C. Mínguez Espallargas, Guillermo 2023 Implementing Mesoporosity in Zeolitic Imidazolate Frameworks through Clip-Off Chemistry in Heterometallic Iron-Zinc ZIF-8 Journal of the American Chemical Society 145 42 23249 23256 |
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