Disproportionation of Nitric Oxide at a Surface-Bound Nickel Porphyrinoid

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 CM, Feyer V, Vesselli E, Zamborlini G (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Angewandte Chemie International Edition Wiley

DOI: 10.1002/anie.202201916

Abstract

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.

Authors with CRIS profile

Chantal Hohner Lehrstuhl für Physikalische Chemie II Miroslav Kettner Lehrstuhl für Katalytische Grenzflächenforschung Jörg Libuda Professur für Physikalische Chemie

Involved external institutions

Università degli Studi di Trieste IT Italy (IT) Technische Universität Dortmund DE Germany (DE) Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE) CNR-IOM DEMOCRITOS - Istituto Officina dei Materiali - Consiglio Nazionale delle Ricerche IT Italy (IT) Karl-Franzens-Universität Graz AT Austria (AT)

How to cite

APA:

Stredansky, M., Moro, S., Corva, M., Sturmeit, H., Mischke, V., Janas, D.,... Zamborlini, G. (2022). Disproportionation of Nitric Oxide at a Surface-Bound Nickel Porphyrinoid. Angewandte Chemie International Edition. https://dx.doi.org/10.1002/anie.202201916

MLA:

Stredansky, Matus, et al. "Disproportionation of Nitric Oxide at a Surface-Bound Nickel Porphyrinoid." Angewandte Chemie International Edition (2022).

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