have an ideal and rigid geometry for the formation of half-sandwich compounds. As a result, stable chromium(III) complexes 5−8 with intramolecular nitrogen coordination have been obtained. Treatment with MAO leads to highly active, temperature-stable catalysts for the polymerization of ethylene.
被
喹啉或N,N-二甲基
苯胺官能化的
环戊二烯基
配体具有理想且刚性的几何结构,以形成半夹心化合物。其结果是,稳定的
铬(III)配合物5 - 8与已获得的分子内氮的协调。用MAO处理产生用于
乙烯聚合的高活性,温度稳定的催化剂。