Metal (III) complexes containing conjugated, non-aromatic anionic II- bound groups and addition polymerization catalysts therefrom

摘要

Novel Group 4, Group 3 or Lanthanide metal complexes wherein the metal is in the +3 formal oxidation state containing a cyclic or non- cyclic, nonaromatic, anionic, dienyl ligand group bound to M and having a bridged ligand structure, catalytic derivatives of such complexes; and the use thereof as catalysts for polymerizing addition polymerizable monomers are disclosed.