Novel Group 4 metal complexes wherein the metal is in the +2 or +4 formal oxidation state containing a cyclic or noncyclic, non-aromatic, anionic, dienyl ligand group bound to M and having a bridged ligand structure, catalytic derivatives of such complexes including novel zwitterionic complexes; and the use thereof as catalysts for polymerizing addition polymerizable monomers are disclosed.
揭示了一种新颖的4族
金属配合物,其中
金属处于+2或+4的形式氧化状态,含有与
金属结合的环状或非环状、非芳香性、阴离子、二烯基
配体基团,并具有桥联
配体结构,以及这些配合物的催化衍
生物,包括新型的带氧离子复合物;并将其用作催化剂,用于聚合可加聚合单体。