Metal complexes containing bridged, non-aromatic, anionic,...

Details Metal complexes containing bridged, non-aromatic, anionic,... Metal complexes containing bridged, non-aromatic, anionic,...

C - Chemistry, Metallurgy

07

F

C07F 17/00 (2006.01) C08F 4/64 (2006.01) C08F 10/00 (2006.01) C08F 4/659 (2006.01)

Patent

CA 2260985

Novel Group 4 metal complexes wherein the metal is in the +2, +3, or +4 formal oxidation state containing two ligand groups bound by .pi.-electrons, at least one of which is a cyclic or non-cyclic, non-aromatic, anionic, dienyl ligand group and having a bridged ligand structure, catalytic derivatives of such complexes; and the use thereof as catalysts for polymerizing addition polymerizable monomers are disclosed.

Cette invention concerne de nouveaux complexes métalliques du groupe 4 dans lesquels le métal se trouve dans l'état d'oxydation formel +2, +3 ou +4, lesdits complexes contenant deux groupes ligands liés par des électrons-.pi., l'un au moins de ces groupes étant un groupe ligand diényle, anionique, non aromatique, cyclique ou non cyclique et doté d'une structure pontée. L'invention se rapporte également à des dérivés catalytiques de tels complexes ainsi qu'à leur utilisation en tant que catalyseurs destinés à la polyaddition de monomères polymérisables.

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