作者:Fausto Calderazzo、Piersandro Pallavicini、Guido Pampaloni
DOI:10.1039/dt9900001813
日期:——
with Al–AlCl3–aromatic hydrocarbon systems led to solutions containing zirconium(II)–arene complexes. For the case of benzene and hexamethylbenzene (in benzene), solid substances of composition Zr(arene)(AlCl4)2 were obtained. On the basis of spectroscopic properties, chemical reactivity, and other data these substances are believed to be zirconium(II) derivatives, with structures similar to those already
无水四卤化物MX 4(M = Zr或Hf,X = Br或I)的制备方法是,将M(BH 4)4用干燥的HX在正庚烷中作为溶剂处理,然后在减压下升华。ZrCl 4与Al–AlCl 3 –芳烃体系的反应导致溶液中含有锆(II)–芳烃配合物。对于苯和六甲基苯(在苯中),获得了组成为Zr(亚芳基)(AlCl 4)2的固体物质。根据光谱性质,化学反应性和其他数据,这些物质被认为是锆(II)衍生物,其结构与相应的钛(II)配合物已经建立的结构相似。锆(II)的六甲基苯配合物也可以通过[Zr(C 6 H 6)(AlCl 4)2 ]和丁-2-炔的配位体合成反应获得。获得了相应of(II)–η 6-芳烃配合物(芳烃=甲苯或均三甲苯)在溶液中存在的光谱证据。三核物种中,[Zr 3氯6(η 6 -C 6我6)3 ] Ñ +(n = 1或2)是通过Al-AlCl 3还原ZrCl 4(n = 2)或用水(n = 1)处理锆(II)-C