CpZrCl3·DME (I, Cp = η5-C5H5, DME = 1,2-dimethoxyethane) has been synthesized by reaction of sublimed ZrCl4 and TlCp in DME in 2:1 mole ratio (sublimation of the ZrCl4 is essential). Alternatively, unsolvated, insoluble and presumably polymeric CpZrCl3 is selectively produced by photolysis of Cp2ZrCl2 in Me3CCl. The crystal structure of compound I shows axial-equatorial coordination of the DME ligand
CPZrCl 3 ·
DME(I,
CP =η 5 -C 5 H ^ 5,
DME = 1,2-
二甲氧基乙烷)已经由升华的ZrCl的反应合成4和TL
CP在
DME在2:1分摩尔比(使用ZrCl的升华4是必不可少的)。备选地,通过在Me 3 CCl中光解
CP 2 ZrCl 2来选择性地产生未溶剂化,不溶且可能是
聚合物的
CPZrCl 3。化合物I的晶体结构显示
DME
配体的轴向-赤道配位。后者很容易被
四甲基乙二胺取代。与上述结果相反,
CPTiCl 3 可以从
DME中重结晶,而溶剂与
钛没有配位。