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dc.contributor.authorSánchez, Práxedeses_ES
dc.contributor.authorHernández-Juárez, M.es_ES
dc.contributor.authorÁlvarez, Eleuterioes_ES
dc.contributor.authorPaneque, Margaritaes_ES
dc.contributor.authorRendón, Nuriaes_ES
dc.contributor.authorSuárez, Andréses_ES
dc.identifier.citationDalton Transactions 45(42): 16997-17009 (2016)es_ES
dc.description.abstractCoordination studies of new lutidine-derived hybrid NHC/phosphine ligands (CNP) to Pd and Ir have been performed. Treatment of the square-planar [Pd(CNP)Cl](AgCl2) complex 2a with KHMDS produces the selective deprotonation at the CH2P arm of the pincer to yield the pyridine-dearomatised complex 3a. A series of cationic [Ir(CNP)(cod)]+ complexes 4 has been prepared by reaction of the imidazolium salts 1 with Ir(acac)(cod). These derivatives exhibit in the solid state, and in solution, a distorted trigonal bipyramidal structure in which the CNP ligands adopt an unusual C(axial)–N(equatorial)–P(equatorial) coordination mode. Reactions of complexes 4 with CO and H2 yield the carbonyl species 5a(Cl) and 6a(Cl), and the dihydrido derivatives 7, respectively. Furthermore, upon reaction of complex 4b(Br) with base, selective deprotonation at the methylene CH2P arms is observed. The, thus formed, deprotonated Ir complex 8b reacts with H2 in a ligand-assisted process leading to the trihydrido complex 9b, which can also be obtained by reaction of 7b(Cl) with H2 in the presence of KOtBu. Finally, the catalytic activity of Ir–CNP complexes in the hydrogenation of ketones has been briefly assessed.es_ES
dc.description.sponsorshipWe acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI).-
dc.description.sponsorshipFinancial support (FEDER contribution) from the Spanish MINECO (CTQ2013-45011-P, CTQ2016-80814-R and CTQ2014-51912-REDC) is gratefully acknowledged. M. H. J. thanks SECITI-DF for a postdoctoral fellowship.-
dc.publisherRoyal Society of Chemistry (UK)es_ES
dc.relation.isversionofPublisher's versiones_ES
dc.titleSynthesis, structure and reactivity of Pd and Ir complexes based on new lutidine-derived NHC/phosphine mixed pincer ligandses_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderCSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)-
dc.contributor.funderSecretaría de Ciencia, Tecnología e Innovación del Distrito Federal (México)-
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