A metallocene compound with the 4- and 7-positions on the indenyl moiety possessing large aromatic substituents is prepared in accordance with a method which produces substantially 100 percent racemic isomer. Advantageously, polymerisation catalysts including the metallocene of the invention provide superior olefin polymerisation results.
根据一种方法,制备了在
茚基团上的4-位和7-位具有大芳香取代基的
金属茂化合物,该方法产生大约100%的外消旋异构体。优点是,包括本发明的茂
金属在内的聚合催化剂提供了优越的烯烃聚合结果。