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http://hdl.handle.net/10261/37698
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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Burling, Suzanne | - |
dc.contributor.author | Mas-Marzá, Elena | - |
dc.contributor.author | Villar Valpuesta, José E. | - |
dc.contributor.author | Mahon, Mary F. | - |
dc.contributor.author | Whittlesey, Michael K. | - |
dc.date.accessioned | 2011-07-12T12:46:27Z | - |
dc.date.available | 2011-07-12T12:46:27Z | - |
dc.date.issued | 2009-10-21 | - |
dc.identifier.citation | Organometallics 28(23): 6676-6686 (2009) | es_ES |
dc.identifier.issn | 0276-7333 | - |
dc.identifier.uri | http://hdl.handle.net/10261/37698 | - |
dc.description | 11 páginas, 8 figuras, 1 tabla, 6 esquemas. | es_ES |
dc.description.abstract | The 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.sponsorship | We thank the EPSRC (S.B.) and Spanish Ministerio de Ciencia e Innovación (E.M.M.) for financial support. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | American Chemical Society | es_ES |
dc.rights | closedAccess | es_ES |
dc.subject | N-heterocyclic carbenes | es_ES |
dc.subject | Phosphine | es_ES |
dc.subject | C-H activation | es_ES |
dc.subject | Hydride complexes | es_ES |
dc.subject | Thermodynamic | es_ES |
dc.subject | H NMR | es_ES |
dc.subject | X-ray crystallography | es_ES |
dc.title | Coordination, Agostic Stabilization, and C−H Bond Activation of N-Alkyl Heterocyclic Carbenes by Coordinatively Unsaturated Ruthenium Hydride Chloride Complexes | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1021/om9007532 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1021/om9007532 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | none | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | No Fulltext | - |
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