Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one unsubstituted, substituted or fused, 5-membered heteroaromatic ring system bound via a specific bridge, a catalyst system comprising at least one of the mono-cyclopentadienyl complexes, the use of the catalyst system for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system and polymers obtainable in this way.
单
环戊二烯基配合物,其中
环戊二烯基系统通过特定桥连结至至少一个未取代、取代或融合的五元杂环芳香环系统,催化剂系统包括至少一种单
环戊二烯基配合物,使用该催化剂系统进行烯烃的聚合或共聚合,以及在该催化剂系统的存在下通过烯烃的聚合或共聚合制备的聚烯烃的方法和由此得到的聚合物。