The present invention relates to a stereorigid metallocene compound having as ligands at least two substituted or unsubstituted cyclopentadienyl groups which are connected to one another via a five-membered ring, where at least one cyclopentadienyl group is fused onto the five-membered ring and the ligand system of the stereorigid metallocene compound is different from 4-[.eta..sup.5 -3'-alkylcyclopentadienyl)-4,6,6-trimethyl-(.eta..sup.5 -2-alkyl-4,5-tetrahydropentalene]. The metallocene compound of the invention is suitable as a catalyst component for olefin polymerization.
本发明涉及一种立体刚性的
金属环化合物,其
配体至少有两个取代或未取代的
环戊二烯基团,这些团通过一个五元环连接在一起,其中至少一个
环戊二烯基团融合在五元环上,且该立体刚性
金属环化合物的
配体系统与4-[.eta..sup.5 -3'-烷基
环戊二烯基)-4,6,6-三甲基-(.eta..sup.5 -2-烷基-4,5-四氢苯并]. 不同。本发明的
金属环化合物适用作烯烃聚合的催化剂组分。