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dc.contributor.authorAmor Chico, José Ignacio 
dc.contributor.authorCuenca Agreda, Tomás
dc.contributor.authorGalakhov, Mikhail V.
dc.contributor.authorRoyo Gracia, Pascual 
dc.date.accessioned2009-11-27T11:30:07Z
dc.date.available2009-11-27T11:30:07Z
dc.date.issued1995
dc.identifier.bibliographicCitationJournal of Organometallic Chemistry, 1995, v. 497, p. 127-131en
dc.identifier.issn0022-328X
dc.identifier.urihttp://hdl.handle.net/10017/5081
dc.description.abstractReaction of Si(1,3-tBu2-C5H3)Me3 with MCl4 (M = Ti, Zr) in toluene or hexane at room temp. affords the new trichloromonociclopentadienyl-type derivs. [M(1,3-tBu2-η5-C5H3)Cl3] [M = Ti (2), Zr (3)]. Treatment of complexes 2 and 3 with appropriate alkylating reagents in hexane gives the 1,3-di(tert-butyl)cyclopentadienyl trialkyl titanium and zirconium complexes [M(1,3-tBu2-η5-C5H3)R3] [M = Ti, R = CH3, CH2Ph; M = Zr, R = CH3, CH2Ph (7), CH2CMe2Ph]. Interestingly, when 2 reacts with 3.1 equiv of LiCH2CMe2Ph in hexane at room temp. the ring-tert-butyl-metalated complex [Ti(1-tBu-3-CMe2CH2-η5-C5H3) (CH2CMe2Ph)2] was isolated in 90% yield. The cationic mono(1,3-di-(tert-butyl)cyclopentadienyl) dibenzyl zirconium species [Zr(1,3-tBu2-η5-C5H3)(CH2Ph)2]+, generated in situ by reaction of the tribenzyl complex 7 with B(C6F5)3 or [CPh3]+[B(C6F5)4]- reagents, is reported and their dynamic NMR behavior in CD2Cl2 solns. at low temps. is studied.en
dc.description.sponsorshipFinancial support for this research by DGICYT (Project PB92-0178-C) is gratefully acknowledged. J.I.A. acknowledges Repsol Petróleo S.A. for a fellowship.en
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherElsevieren
dc.rights(c) Elsevier, 1995en
dc.subjectTitaniumen
dc.subjectZirconiumen
dc.subjectZirconocene cationen
dc.subjectCyclopentadienyen
dc.subjectBase-free cation NMR spectroscopyen
dc.titleSynthesis of bis(tert-butyl)cyclopentadienyl derivatives of titanium and zirconium. NMR spectra and dynamic behavior of the base-free [Zr(1,3-tBu2-µ5-C5H3)(CH2Ph)2]+ cationen
dc.typeinfo:eu-repo/semantics/articleen
dc.subject.ecienciaCienciaes_ES
dc.subject.ecienciaFarmacologíaes_ES
dc.subject.ecienciaScienceen
dc.subject.ecienciaPharmacologyen
dc.contributor.affiliationUniversidad de Alcalá. Departamento de Farmacología
dc.relation.publisherversionhttp://dx.doi.org/10.1016/0022-328X(95)00116-8
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.identifier.doi10.1016/0022-328X(95)00116-8
dc.relation.projectIDPB92-0178-C (Ministerio de Educación y Ciencia)
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen


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