Visible light driven generation and alkyne insertion reactions of stable bis-cyclometalated Pt(iv) hydrides

Poveda Otazo, Dionisio; Vivancos Ureña, Ángela; Bautista, Delia; González Herrero, Pablo

Publication:
Visible light driven generation and alkyne insertion reactions of stable bis-cyclometalated Pt(iv) hydrides

dc.contributor.author	Poveda Otazo, Dionisio
dc.contributor.author	Vivancos Ureña, Ángela
dc.contributor.author	Bautista, Delia
dc.contributor.author	González Herrero, Pablo
dc.contributor.department	Química Inorgánica
dc.date.accessioned	2024-01-30T12:43:00Z
dc.date.available	2024-01-30T12:43:00Z
dc.date.copyright	© The Royal Society of Chemistry 2020
dc.date.issued	2020-10-13
dc.description.abstract	Hydride complexes resulting from the oxidative addition of C–H bonds are intermediates in hydrocarbon activation and functionalization reactions. The discovery of metal systems that enable their direct formation through photoexcitation with visible light could lead to advantageous synthetic methodologies. In this study, easily accessible dimers [Pt2(μ-Cl)2(C^N)2] (C^N = cyclometalated 2-arylpyridine) are demonstrated as a very convenient source of Pt(C^N) subunits, which promote photooxidative C–H addition reactions with different 2-arylpyridines (N′^C′H) upon irradiation with blue light. The resulting [PtH(Cl)(C^N)(C′^N′)] complexes are the first isolable Pt(IV) hydrides arising from a cyclometalation reaction. A transcyclometalation process involving three photochemical steps is elucidated, which occurs when the C^N ligand is a monocyclometalated 2,6-diarylpyridine, and a detailed analysis of the photoreactivity associated with the Pt(C^N) moiety is provided. Alkyne insertions into the Pt–H bond of a photogenerated Pt(IV) hydride are also reported as a demonstration of the ability of this class of compounds to undergo subsequent organometallic reactions.
dc.format	application/pdf	es
dc.format.extent	8	es
dc.identifier.doi	https://doi.org/10.1039/D0SC04879H
dc.identifier.uri	http://hdl.handle.net/10201/138168
dc.language	eng	es
dc.relation	MCIN/AEI/10.13039/501100011033 and “ERDF A way of making Europe,” proyecto PGC2018-100719−B-I00. Fundación Séneca-Agencia de Ciencia y Tecnología de la Región de Murcia, proyecto 19890/GERM/15. Fundación Séneca-Agencia de Ciencia y Tecnología de la Región de Murcia, beca predoctoral 20725/FPI/18 y contrato 20398/SF/17.	es
dc.rights	info:eu-repo/semantics/openAccess	es
dc.rights	Attribution-NonCommercial 4.0 International	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc/4.0/	*
dc.subject	Platino	es
dc.subject	Luminiscencia
dc.subject	Complejos ciclometalados
dc.subject.other	CDU::5 - Ciencias puras y naturales::54 - Química::546 - Química inorgánica	es
dc.title	Visible light driven generation and alkyne insertion reactions of stable bis-cyclometalated Pt(iv) hydrides	es
dc.type	info:eu-repo/semantics/article	es
dc.type.version	info:eu-repo/semantics/publishedVersion
dspace.entity.type	Publication	es
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