Nitric oxide activation facilitated by cooperative multimetallic electron transfer within an iron-functionalized polyoxovanadate–alkoxide cluster† †Electronic supplementary information (ESI) available: 1H NMR and 57Fe Mössbauer spectra of 2-V5FeNO, 3-V5FeNO–, 4-V5FeNO2–, 5-V5FeNO+. Spectroscopic characterization for complex 6-V5FeNO3– (1H NMR, solution IR). See DOI: 10.1039/c8sc00987b
| Autor: | Li, F., Meyer, R. L., Carpenter, S. H., VanGelder, L. E., Nichols, A. W., Machan, C. W., Neidig, M. L., Matson, E. M. |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Chemical Science |
| ISSN: | 2041-6539 2041-6520 |
| Popis: | Cooperative multimetallic electron transfer to accommodate substrate binding. A series of NO-bound, iron-functionalized polyoxovanadate–alkoxide (FePOV–alkoxide) clusters have been synthesized, providing insight into the role of multimetallic constructs in the coordination and activation of a substrate. Upon exposure of the heterometallic cluster to NO, the vanadium-oxide metalloligand is oxidized by a single electron, shuttling the reducing equivalent to the {FeNO} subunit to form a {FeNO}7 species. Four NO-bound clusters with electronic distributions ranging from [VV3VIV2]{FeNO}7 to [VIV5]{FeNO}7 have been synthesized, and characterized via1H NMR, infrared, and electronic absorption spectroscopies. The ability of the FePOV–alkoxide cluster to store reducing equivalents in the metalloligand for substrate coordination and activation highlights the ultility of the metal-oxide scaffold as a redox reservoir. |
| Databáze: | OpenAIRE |
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