Catalytic Ammonia Synthesis Mediated by Molybdenum Complexes with PN(3)P Pincer Ligands: Influence of P/N Substituents and Molecular Mechanism

Three molybdenum trihalogenido complexes supported by different PN(3)P pincer ligands were synthesized and investigated regarding their activity towards catalytic N(2)-to-NH(3) conversion. The highest yields were obtained with the H-PN(3)P(tBu) ligand. The corresponding Mo(V)-nitrido complex also sh...

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Autores principales: Bedbur, Katja, Stucke, Nadja, Liehrs, Lina, Krahmer, Jan, Tuczek, Felix
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9692791/
https://www.ncbi.nlm.nih.gov/pubmed/36431964
http://dx.doi.org/10.3390/molecules27227843
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author Bedbur, Katja
Stucke, Nadja
Liehrs, Lina
Krahmer, Jan
Tuczek, Felix
author_facet Bedbur, Katja
Stucke, Nadja
Liehrs, Lina
Krahmer, Jan
Tuczek, Felix
author_sort Bedbur, Katja
collection PubMed
description Three molybdenum trihalogenido complexes supported by different PN(3)P pincer ligands were synthesized and investigated regarding their activity towards catalytic N(2)-to-NH(3) conversion. The highest yields were obtained with the H-PN(3)P(tBu) ligand. The corresponding Mo(V)-nitrido complex also shows good catalytic activity. Experiments regarding the formation of the analogous Mo(IV)-nitrido complex lead to the conclusion that the mechanism of catalytic ammonia formation mediated by the title systems does not involve N-N cleavage of a dinuclear Mo-dinitrogen complex, but follows the classic Chatt cycle.
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spelling pubmed-96927912022-11-26 Catalytic Ammonia Synthesis Mediated by Molybdenum Complexes with PN(3)P Pincer Ligands: Influence of P/N Substituents and Molecular Mechanism Bedbur, Katja Stucke, Nadja Liehrs, Lina Krahmer, Jan Tuczek, Felix Molecules Article Three molybdenum trihalogenido complexes supported by different PN(3)P pincer ligands were synthesized and investigated regarding their activity towards catalytic N(2)-to-NH(3) conversion. The highest yields were obtained with the H-PN(3)P(tBu) ligand. The corresponding Mo(V)-nitrido complex also shows good catalytic activity. Experiments regarding the formation of the analogous Mo(IV)-nitrido complex lead to the conclusion that the mechanism of catalytic ammonia formation mediated by the title systems does not involve N-N cleavage of a dinuclear Mo-dinitrogen complex, but follows the classic Chatt cycle. MDPI 2022-11-14 /pmc/articles/PMC9692791/ /pubmed/36431964 http://dx.doi.org/10.3390/molecules27227843 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bedbur, Katja
Stucke, Nadja
Liehrs, Lina
Krahmer, Jan
Tuczek, Felix
Catalytic Ammonia Synthesis Mediated by Molybdenum Complexes with PN(3)P Pincer Ligands: Influence of P/N Substituents and Molecular Mechanism
title Catalytic Ammonia Synthesis Mediated by Molybdenum Complexes with PN(3)P Pincer Ligands: Influence of P/N Substituents and Molecular Mechanism
title_full Catalytic Ammonia Synthesis Mediated by Molybdenum Complexes with PN(3)P Pincer Ligands: Influence of P/N Substituents and Molecular Mechanism
title_fullStr Catalytic Ammonia Synthesis Mediated by Molybdenum Complexes with PN(3)P Pincer Ligands: Influence of P/N Substituents and Molecular Mechanism
title_full_unstemmed Catalytic Ammonia Synthesis Mediated by Molybdenum Complexes with PN(3)P Pincer Ligands: Influence of P/N Substituents and Molecular Mechanism
title_short Catalytic Ammonia Synthesis Mediated by Molybdenum Complexes with PN(3)P Pincer Ligands: Influence of P/N Substituents and Molecular Mechanism
title_sort catalytic ammonia synthesis mediated by molybdenum complexes with pn(3)p pincer ligands: influence of p/n substituents and molecular mechanism
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9692791/
https://www.ncbi.nlm.nih.gov/pubmed/36431964
http://dx.doi.org/10.3390/molecules27227843
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