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dc.contributor.authorBurling, Suzanne-
dc.contributor.authorMas-Marzá, Elena-
dc.contributor.authorVillar Valpuesta, José E.-
dc.contributor.authorMahon, Mary F.-
dc.contributor.authorWhittlesey, Michael K.-
dc.date.accessioned2011-07-12T12:46:27Z-
dc.date.available2011-07-12T12:46:27Z-
dc.date.issued2009-10-21-
dc.identifier.citationOrganometallics 28(23): 6676-6686 (2009)es_ES
dc.identifier.issn0276-7333-
dc.identifier.urihttp://hdl.handle.net/10261/37698-
dc.description11 páginas, 8 figuras, 1 tabla, 6 esquemas.es_ES
dc.description.abstractThe products formed upon reaction of Ru(PPh3)3HCl and [Ru(PiPr3)2HCl]2 with the N-heterocyclic carbenes 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (IiPr2Me2, 1) and 1,3-diethyl-4,5-dimethylimidazol-2-ylidene (IEt2Me2, 2) proved to be dependent on the phosphine and the N-substituent of the carbene. Thus, Ru(PPh3)3HCl reacts with both 1 and 2 at room temperature in CH2Cl2 to give a mixture of products consisting of cis-/trans-PPh3 isomers of the agostic complexes Ru(NHC)(PPh3)2HCl (NHC = IiPr2Me2, 3a/3b; IEt2Me2, 8a/8b), the anagostic species Ru(NHC)(PPh3)2HCl (NHC = IiPr2Me2, 4; IEt2Me2, 9), and in the case of IiPr2Me2 the C−H activated complex Ru(IiPr2Me2)′(PPh3)2Cl (5). Addition of 1 atm of C2H4 to the mixture of 3a/3b, 4, and 5 leads to complete conversion to 5. [Ru(PiPr3)2HCl]2 reacts with both 1 and 2 to yield only the anagostic complexes Ru(NHC)(PiPr3)2HCl (NHC = IiPr2Me2, 6; IEt2Me2, 10), which on the basis of NMR evidence react with C2H4 to give the doubly C−H activated alkenyl-NHC complexes Ru{η2-C(NiPr)CMeCMeN(CMe═CH)}(PiPr3)2Cl (7) and Ru{η2-C(NEt)CMeCMeN(CH═CH)}(PiPr3)2Cl (11). Addition of 1 to Ru(PiPr3)2(CO)HCl affords the agostic stabilized monocarbene complex Ru(IiPr2Me2)(PiPr3)(CO)HCl (12) and the tris-carbene species Ru(IiPr2Me2)3(CO)HCl (13). Complexes 3a, 4, 5, 6, 8a, 10, 12, and 13 have been structurally characterized.es_ES
dc.description.sponsorshipWe thank the EPSRC (S.B.) and Spanish Ministerio de Ciencia e Innovación (E.M.M.) for financial support.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Chemical Societyes_ES
dc.rightsclosedAccesses_ES
dc.subjectN-heterocyclic carbeneses_ES
dc.subjectPhosphinees_ES
dc.subjectC-H activationes_ES
dc.subjectHydride complexeses_ES
dc.subjectThermodynamices_ES
dc.subjectH NMRes_ES
dc.subjectX-ray crystallographyes_ES
dc.titleCoordination, Agostic Stabilization, and C−H Bond Activation of N-Alkyl Heterocyclic Carbenes by Coordinatively Unsaturated Ruthenium Hydride Chloride Complexeses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1021/om9007532-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1021/om9007532es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
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