well as the effect of permethylation of the cyclopentadienyl moiety. The complexes have been tested for their efficacy as catalysts for the solution polymerization of ethylene, and Pn*ZrCpCl was found to give the highest activity of 6993 kg mol–1 h–1 bar–1 at 80 °C with a [MAO]0/[Zr]0 ratio of 1000 and 2 bar pressure of ethylene gas in hexane.
一系列群组4 permethylpentalene
环戊二烯混合的夹心复合已经合成包括单-和双-
环戊二烯基衍
生物PN * MCP 2- X
氯X(
PN * =η 8 -C 8我6,M =
钛,
锆,
铪,X = 0,1)和monopentamethylcyclopentadienyl物种
PN * MCP *
氯(
PN * =η 8 -C 8我6,M = Ti,Zr和Hf)。所有化合物均通过包括单晶X射线衍射在内的一系列技术进行了表征,从而可以比较下降基团的趋势以及
环戊二烯基部分的全甲基化作用。已对该配合物作为
乙烯溶液聚合催化剂的功效进行了测试,发现
PN * ZrCPCl在80°C下以[MAO] 0的最高活性为6993 kg mol –1 h –1 bar –1。/ [Zr] 0比率1000和2 bar的
乙烯气体在己烷中的压力。