dc.contributor.author | Sebastián Navas, Alfredo | |
dc.contributor.author | Royo Gracia, Pascual | |
dc.contributor.author | Gómez Sal, Pilar | |
dc.contributor.author | Ramírez de Arellano, Carmen | |
dc.date.accessioned | 2009-10-02T08:08:11Z | |
dc.date.available | 2009-10-02T08:08:11Z | |
dc.date.issued | 2004 | |
dc.identifier.bibliographicCitation | European Journal of Inorganic Chemistry, 2004, v.2004, n.19, p.3814-3821 | en |
dc.identifier.issn | 1099-0682 | |
dc.identifier.uri | http://hdl.handle.net/10017/4180 | |
dc.description.abstract | Alkylation of ansa-zirconocene [Zr{(η5-C5H5)SiMe2(MBI)}Cl2] (MBI = η5-2-Me−C13H7) with MgRCl gave the dimethyl complex [Zr{(η5-C5H5)SiMe2(MBI)}Me2], but unresolvable mixtures containing mono-alkylated compounds were obtained when bulkier alkyls were used. However pure dialkyl complexes [Zr{(η5-C5H5)SiMe2(MBI)}R2] (R = CH2Ph, CH2SiMe3) were easily obtained using K(CH2Ph) and Li(CH2SiMe3) as alkylating agents. Diastereoselective insertion into the MBI-unprotected Zr−R bond was observed when all of these dialkyl complexes were treated with 2,6-xylyl isocyanide to give the iminoacyl compounds [Zr{(η5-C5H5)SiMe2(MBI)}R{CR[η2-N-(2,6-xylyl)]}] (R = Me, CH2Ph, CH2SiMe3). All of the new complexes were characterized by NMR spectroscopy and the X-ray molecular structures of the dibenzyl and the imino-benzyl compounds were determined. The catalytic activity for ethene polymerization and ethene/1-hexene copolymerization of the dichloro zirconocenes [Zr{(η5-C5H5)EMe2(MBI)}Cl2] (E = C, Si), activated with methylalumoxane (MAO), was measured. | en |
dc.description.sponsorship | Repsol-YPF | es_ES |
dc.format.mimetype | application/pdf | en |
dc.language.iso | eng | en |
dc.publisher | John Wiley & Sons | en |
dc.rights | © Wiley, 2004 | en |
dc.subject | Metallocenes | en |
dc.subject | Zirconium | en |
dc.subject | Insertion | en |
dc.subject | Isocyanides | en |
dc.subject | Polymerization | en |
dc.title | Diastereoselective insertion of isocyanide into the alkyl metal bond of methylbenz[e]indenyl ansa-zirconocene complexes | en |
dc.type | info:eu-repo/semantics/article | en |
dc.subject.eciencia | Ciencia | es_ES |
dc.subject.eciencia | Química inorgánica | es_ES |
dc.subject.eciencia | Science | en |
dc.subject.eciencia | Chemistry, inorganic | en |
dc.contributor.affiliation | Universidad de Alcalá. Departamento de Química Inorgánica | |
dc.relation.publisherversion | http://dx.doi.org/10.1002/ejic.200400333 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | en |
dc.identifier.doi | 10.1002/ejic.200400333 | |
dc.relation.projectID | MAT2001- 1309 (Ministerio de Ciencia y Tecnología) | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |