dc.contributor.author | Gómez García, Roberto | |
dc.contributor.author | Royo Gracia, Pascual | |
dc.date.accessioned | 2009-10-15T09:26:37Z | |
dc.date.available | 2009-10-15T09:26:37Z | |
dc.date.issued | 1999 | |
dc.identifier.bibliographicCitation | Journal of Organometallic Chemistry, 1999, v.583, n.1-2, p.86-93 | en |
dc.identifier.issn | 0022-328X | |
dc.identifier.uri | http://hdl.handle.net/10017/4237 | |
dc.description.abstract | The monocyclopentadienyl titanium complex [Ti{(C5H4)(SiMe2)2(η5-C5H3)} Cl3] 3 and the dichloro mixed dicyclopentadienyl Group 4 metal complexes [M(η5-C5R5){(C5H4)(SiMe2)2(η5-C5H3)} Cl2] (R=H; M=Ti 4, Zr 5, Hf 6; R=Me; M=Ti 7) containing the doubly bridged bis(dimethylsilanediyl)-cyclopentadiene-(η5-cyclopentadienyl) ligand were prepared in high yields by reaction of the monolithium salt Li[(C5H4)(SiMe2)2(C5H3)] 2 with equimolar amounts of TiCl4 or the monocyclopentadienyl complexes [Cp′MCl3], respectively. Reactions of the chloro complexes with various alkylating agents afforded the chloroalkyl [M(η5-C5H5){(C5H4)(SiMe2)2(η5-C5H3)}ClR] (M=Ti; R=Me 8, Et 9; M=Zr, R=Me 10, Et 11, CH2Ph 12; M=Hf, R=CH2Ph 13) and dialkyl [M(η5-C5R5){(C5H4)(SiMe2)2(η5-C5H3)}Me2] (M=Ti; R=H 14, Me 15; M=Zr; R=H 16, compounds. Formation of the heterodinuclear complex [Zr(η5-C5H5)Cl2(η5-C5H3)(SiMe2)2(η5-C5H3)Ti(NMe2)3] 17 with amine elimination was observed by 1H-NMR spectroscopy when complex 5 was reacted with Ti(NMe2)4. The catalytic activity of compounds 3–5 for ethylene polymerization has been studied using MAO as cocatalyst. | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | eng | en |
dc.publisher | Elsevier | en |
dc.rights | © Elsevier, 1999 | en |
dc.subject | Titanium | en |
dc.subject | Zirconium | en |
dc.subject | Hafnium | en |
dc.subject | Dicyclopentadienyl complexes | en |
dc.subject | Polyethylene | en |
dc.title | Synthesis and reactivity of new mixed dicyclopentadienyl Group 4 metal complexes with the doubly bridged bis(dimethylsilanediyl)-cyclopentadiene-(η5-cyclopentadienyl) ligand | 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)00111-4 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | en |
dc.identifier.doi | 10.1016/S0022-328X(99)00111-4 | |
dc.relation.projectID | PB97-0776 (Ministerio de Educación y Cultura) | |
dc.relation.projectID | I+D0033/94 (Comunidad de Madrid) | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |