The invention relates to an indenyl compound of the general formula R'Ind--M--(Cp)Q.sub.k in which the symbols have the following meanings: Ind: an indenyl group R': a substituent, other than hydrogen, to the Ind group, Cp: a cyclopentadienyl group M: a transition metal from group 3, 4, 5 or 6 of the Periodic System of Elements Q: a ligand to M and k is an integer linked to the valence of M. The invention is characterized in that the R' group is bound to the Ind group at the 2-position. The indenyl compound is a catalyst component for the polymerization of olefins. The invention also relates to polymers obtainable with such indenyl compounds.
该发明涉及一种通式为R'Ind--M--(Cp)Q.sub.k的
茚基化合物,其中符号具有以下含义:Ind:一个
茚基;R':一个取代基,不包括氢,连接到Ind基团;Cp:一个
环戊二烯基;M:来自元素周期表第3、4、5或6族的过渡
金属;Q:与M形成
配体的
配体,k是与M的化合价相关的整数。该发明的特征在于R'基团与Ind基团在2位结合。该
茚基化合物是烯烃聚合的催化剂组分。该发明还涉及使用这种
茚基化合物可获得的聚合物。