dc.contributor.author | Cuenca Agreda, Tomás | |
dc.contributor.author | Gómez Sal, Pilar | |
dc.contributor.author | Martín Marcos, Carlos | |
dc.contributor.author | Royo Cantabrana, Beatriz | |
dc.contributor.author | Royo Gracia, Pascual | |
dc.date.accessioned | 2009-10-15T08:32:53Z | |
dc.date.available | 2009-10-15T08:32:53Z | |
dc.date.issued | 1999 | |
dc.identifier.bibliographicCitation | Journal of Organometallic Chemistry, 1999, v. 588, p. 134-140 | en |
dc.identifier.issn | 0022-328X | |
dc.identifier.uri | http://hdl.handle.net/10017/4231 | |
dc.description.abstract | Reaction of the bridged (dimethylsilanediyl)dicyclopentadienyl dilithium salt [(SiMe2)(C5H4)2Li2] with MCl4, in toluene, gave the zirconium and hafnium complexes [M{(SiMe2)(η5-C5H4)2}Cl2] [M=Zr (1), Hf (2)]. Addition of two equivalents of M′R (M′=MgCl, R=CH3; M′=Li, R=CH2CMe2Ph; M′=MgBz, R=CH2Ph) to toluene or diethyl ether solutions of [M{(SiMe2)(η5-C5H4)2}Cl2] afforded the dialkyl derivatives [M{(SiMe2)(η5-C5H4)2}R2] [R=CH3, M=Zr (3), Hf (4); R=CH2CMe2Ph, M=Zr (5), Hf (6); R=CH2Ph, M=Zr (7)]. Compound 1 reacted with LiMe and Mg(CH2Ph)2(THF)2 in the presence of a stoichiometric amount of water to give the μ-oxo derivatives [Zr{(SiMe2)(η5-C5H4)2}R]2(μ-O) [R=CH3 (8), CH2Ph (9)]. The X-ray molecular structure of [Zr{(SiMe2)(η5-C5H4)2}(CH2Ph)]2(μ-O) (9) has been determined by diffraction methods. Its most remarkable feature is the planarity of the BzZrOZrBz and the linearity of the ZrOZr systems. | en |
dc.description.sponsorship | We acknowledge the Dirección General de Investigación Científica y Técnica (Spain) for financial support of this research (Project PB97-0776). | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | eng | en |
dc.publisher | Elsevier | en |
dc.rights | (c) Elsevier, 1999 | en |
dc.subject | Zirconium | en |
dc.subject | Hafnium | en |
dc.subject | Silanediyl-cyclopentadienyl | en |
dc.subject | Chloro | en |
dc.subject | Alkyl | en |
dc.subject | Oxoalkyl | en |
dc.title | Dicyclopentadienyl zirconium and hafnium complexes with the bridged (dimethylsilanodiyl)dicyclopentadienyl [(SiMe2)(η5-C5H4)2]2 ligand. X-ray molecular structure of [Zr{(SiMe2)(η5-C5H4)2}(CH2Ph)]2(μ-O) | 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/10.1016/S0022-328X(99)00362-9 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | en |
dc.identifier.doi | 10.1016/S0022-328X(99)00362-9 | |
dc.relation.projectID | PB97-0776 (Ministerio de Educación y Cultura) | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |