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Título: | Dinuclear Au(I), Au(II) and Au(III) Complexes with (CF2)n Chains: Insights into The Role of Aurophilic Interactions in the Au(I) Oxidation |
Fecha de publicación: | 7-sep-2021 |
Fecha de defensa / creación: | 2021 |
Editorial: | Wiley- VCH GmbH |
Cita bibliográfica: | Chemistry - A European Journal, 2021, vol. 27, issue 63, pag. 15815–15822 |
ISSN: | Print: 0947-6539 Electronic: 1521-3765 |
Materias relacionadas: | CDU::5 - Ciencias puras y naturales::54 - Química::546 - Química inorgánica |
Palabras clave: | Aurophilicity Gold Fluorinated ligands Metallacycles Metal-metal interactions |
Resumen: | New dinuclear Au(I), Au(II) and Au(III) complexes containing (CF2)n bridging chains were obtained. Metallomacrocycles [Au2{μ-(CF2)4}{μ-diphosphine}] show an uncommon figure-eight structure, the helicity inversion barrier of which is influenced by aurophilic interactions and steric constraints imposed by the diphosphine. Halogenation of LAu(CF2)4AuL (L=PPh3, PMe3, (dppf)1/2, (binap)1/2) gave [Au(II)]2 species, some of which display unprecedented folded structures with Au –Au bonds. Aurophilic interactions facilitate this oxidation process by preorganizing the starting [Au(I)]2 complexes and lowering its redox potential. The obtained [Au(II)]2 complexes undergo thermal or photochemical elimination of R3PAuX to give Au(III) perfluorinated auracycles. Evidence of a radical mechanism for these decomposition reactions was obtained. |
Autor/es principal/es: | Portugués, Alejandro Bautista, Delia Gil-Rubio, Juan |
Facultad/Departamentos/Servicios: | Facultades, Departamentos, Servicios y Escuelas::Departamentos de la UMU::Química Inorgánica |
Versión del editor: | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202103153 |
URI: | http://hdl.handle.net/10201/137742 |
DOI: | https://doi.org/10.1002/chem.202103153 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 9 |
Derechos: | info:eu-repo/semantics/openAccess Atribución-NoComercial 4.0 Internacional |
Descripción: | © 2021. Wiley. This document is made available under the CC-BY-NC 4.0 license http://creativecommons.org/licenses/by-nc /4.0/ This document is the accepted version of a published work that appeared in final form in Chemistry - A European Journal. |
Aparece en las colecciones: | Artículos: Química Inorgánica |
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