Revisiting Vibrational Spectroscopy to Tackle the Chemistry of Zr6O8 Metal-Organic Framework Nodes
| Autor: | Ignacio Romero-Muñiz, Carlos Romero-Muñiz, Isabel del Castillo-Velilla, Carlo Marini, Sofía Calero, Félix Zamora, Ana E. Platero-Prats |
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| Přispěvatelé: | UAM. Departamento de Química Inorgánica, Materials Simulation & Modelling, Molecular Simulation & Modelling |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Biblos-e Archivo. Repositorio Institucional de la UAM instname ACS applied materials & interfaces 14(23), 27040-27047 (2022). doi:10.1021/acsami.2c04712 ACS Applied Materials and Interfaces, 14(23), 27040-27047. American Chemical Society |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.2c04712 |
| Popis: | ACS applied materials & interfaces 14(23), 27040 - 27047 (2022). doi:10.1021/acsami.2c04712 The metal-organic framework MOF-808 contains Zr$_6$O$_8$ nodes with a high density of vacancy sites, which can incorporate carboxylate-containing functional groups to tune chemical reactivity. Although the postsynthetic methods to modify the chemistry of the Zr$_6$O$_8$ nodes in MOFs are well known, tackling these alterations from a structural perspective is still a challenge. We have combined infrared spectroscopy experiments and first-principles calculations to identify the presence of node vacancies accessible for chemical modifications within the MOF-808. We demonstrate the potential of our approach to assess the decoration of MOF-808 nodes with different catechol–benzoate ligands. Furthermore, we have applied advanced synchrotron characterization tools, such as pair distribution function analyses and X-ray absorption spectroscopy, to resolve the atomic structure of single metal sites incorporated into the catechol groups postsynthetically. Finally, we demonstrate the catalytic activity of these MOF-808 materials decorated with single copper sites for 1,3-dipolar cycloadditions. Published by ACS Publ., Washington, DC |
| Databáze: | OpenAIRE |
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