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10.1021/jacs.5b1331
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Título: | Aromatic C−H Activation in the Triplet Excited State of Cyclometalated Platinum(II) Complexes Using Visible Light |
Fecha de publicación: | 8-abr-2016 |
Cita bibliográfica: | Journal of the American Chemical Society, 2016, 138, 5276-5282. |
ISSN: | 0002-7863 1520-5126 |
Materias relacionadas: | CDU::5 - Ciencias puras y naturales::54 - Química::546 - Química inorgánica |
Resumen: | The visible-light driven cyclometalation of arene substrates containing an N-donor heteroaromatic moiety as directing group by monocy-clometalated Pt(II) complexes is reported. Precursors of the type [PtMe(C^N)(N^CH)], where N^CH is 2-phenylpyridine (ppyH) or related compunds with diverse electronic properties and C^N is the corresponding cyclometalated ligand, afford homoleptic cis-[Pt(C^N)2] complexes upon irradiation with blue LEDs at room temperature with evolution of methane. Heteroleptic derivatives cis-[Pt(ppy)(C'^N')] are obtained analogously from [PtMe(ppy)(N'^C'H)], where N'^C'H represents an extended set of heteroaromatic compounds. Experimental and computational studies demonstrate an unprecedented C–H oxidative addition, which is initiated by a triplet excited state of metal-to-ligand charge-transfer (MLCT) character and leads to a detectable Pt(IV) methyl hydride intermediate. |
Autor/es principal/es: | Juliá, Fabio González-Herrero, Pablo |
Facultad/Departamentos/Servicios: | Facultades, Departamentos, Servicios y Escuelas::Departamentos de la UMU::Química Inorgánica |
Versión del editor: | https://pubs.acs.org/doi/10.1021/jacs.5b13311 |
URI: | http://hdl.handle.net/10201/101810 |
DOI: | 10.1021/jacs.5b1331 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 9 |
Derechos: | info:eu-repo/semantics/openAccess Atribución-NoComercial-SinDerivadas 3.0 España |
Aparece en las colecciones: | Artículos: Química Inorgánica |
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ja-2015-13311q.R2.pdf | 2,36 MB | Adobe PDF | Visualizar/Abrir |
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