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.
一种具有
茚基上4-和7-位置的
金属茂化合物,其具有大的芳香基团,按照一种产生实质上100%外消旋异构体的方法制备。优选地,包括该发明的茂
金属在内的聚合催化剂提供优越的烯烃聚合结果。