Disproportionation of Nitric Oxide at a Surface-Bound Nickel Porphyrinoid
| Autor: | Matus Stredansky, Stefania Moro, Manuel Corva, Henning Sturmeit, Valentin Mischke, David Janas, Iulia Cojocariu, Matteo Jugovac, Albano Cossaro, Alberto Verdini, Luca Floreano, Zhijing Feng, Alessandro Sala, Giovanni Comelli, Andreas Windischbacher, Peter Puschnig, Chantal Hohner, Miroslav Kettner, Jörg Libuda, Mirko Cinchetti, Claus Michael Schneider, Vitaliy Feyer, Erik Vesselli, Giovanni Zamborlini |
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| Přispěvatelé: | Stredansky, M., Moro, S., Corva, M., Sturmeit, H., Mischke, V., Janas, D., Cojocariu, I., Jugovac, M., Cossaro, A., Verdini, A., Floreano, L., Feng, Z., Sala, A., Comelli, G., Windischbacher, A., Puschnig, P., Hohner, C., Kettner, M., Libuda, J., Cinchetti, M., Schneider, C. M., Feyer, V., Vesselli, E., Zamborlini, G. |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Porphyrins
2D Materials Biomimetic Materials Disproportionation Nitrogen Monoxide Single-Atom Catalysts Copper Ferric Compounds Metals Oxidation-Reduction Nickel Nitric Oxide Metal General Chemistry General Medicine Physik (inkl. Astronomie) Ferric Compound Catalysis Porphyrin Single-Atom Catalyst 2D Material ddc:540 ddc:660 Biomimetic Material |
| Zdroj: | Angewandte Chemie Angewandte Chemie 134(20), e202201916 (2022). doi:10.1002/ange.202201916 Angewandte Chemie / International edition 61(20), 123 (2022). doi:10.1002/anie.202201916 |
| DOI: | 10.1002/ange.202201916 |
| Popis: | Uncommon metal oxidation states in porphyrinoid cofactors are responsible for the activity of many enzymes. The F₄₃₀ and P450nor co-factors, with their reduced NiI- and FeIII-containing tetrapyrrolic cores, are prototypical examples of biological systems involved in methane formation and in the reduction of nitric oxide, respectively. Herein, using a comprehensive range of experimental and theoretical methods, we raise evidence that nickel tetraphenyl porphyrins deposited in vacuo on a copper surface are reactive towards nitric oxide disproportionation at room temperature. The interpretation of the measurements is far from being straightforward due to the high reactivity of the different nitrogen oxides species (eventually present in the residual gas background) and of the possible reaction intermediates. The picture is detailed in order to disentangle the challenging complexity of the system, where even a small fraction of contamination can change the scenario. |
| Databáze: | OpenAIRE |
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