dc.contributor.author | Amor Chico, José Ignacio | |
dc.contributor.author | Cuenca Agreda, Tomás | |
dc.contributor.author | Galakhov, Mikhail V. | |
dc.contributor.author | Royo Gracia, Pascual | |
dc.date.accessioned | 2009-11-27T11:30:07Z | |
dc.date.available | 2009-11-27T11:30:07Z | |
dc.date.issued | 1995 | |
dc.identifier.bibliographicCitation | Journal of Organometallic Chemistry, 1995, v. 497, p. 127-131 | en |
dc.identifier.issn | 0022-328X | |
dc.identifier.uri | http://hdl.handle.net/10017/5081 | |
dc.description.abstract | Reaction 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.sponsorship | Financial 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.mimetype | application/pdf | en |
dc.language.iso | eng | en |
dc.publisher | Elsevier | en |
dc.rights | (c) Elsevier, 1995 | en |
dc.subject | Titanium | en |
dc.subject | Zirconium | en |
dc.subject | Zirconocene cation | en |
dc.subject | Cyclopentadieny | en |
dc.subject | Base-free cation NMR spectroscopy | en |
dc.title | Synthesis 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]+ cation | en |
dc.type | info:eu-repo/semantics/article | en |
dc.subject.eciencia | Ciencia | es_ES |
dc.subject.eciencia | Farmacología | es_ES |
dc.subject.eciencia | Science | en |
dc.subject.eciencia | Pharmacology | en |
dc.contributor.affiliation | Universidad de Alcalá. Departamento de Farmacología | |
dc.relation.publisherversion | http://dx.doi.org/10.1016/0022-328X(95)00116-8 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | en |
dc.identifier.doi | 10.1016/0022-328X(95)00116-8 | |
dc.relation.projectID | PB92-0178-C (Ministerio de Educación y Ciencia) | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |