treatment of nickelocene (I) with the appropriate alkylmagnesium halides and ethylene. Other alkylmagnesium halides (propyl, butyl and their isomers) also react with I and ethylene with formation of II. I reacts with isopropylmagnesium halide and propene to give a mixture of the isomeric propyl complexes IIIa and IIIB. The 1H NMR spectra are temperature dependent indicating the presence of conformers in
的η 5 -
环戊二烯基-η 2 -ethylenealkylnickel络合物II(乙基),IV(甲基)和V(三甲基
硅甲基)已经被制备治疗茂
镍的(I)与适当的烷基卤化
镁和
乙烯。其他烷基卤化
镁(丙基,丁基及其异构体)也与I和
乙烯反应生成II。I与异丙基卤化
镁和
丙烯反应,得到异丙基丙基配合物IIIa和IIIB的混合物。的1 1 H NMR光谱是依赖于温度的指示II--VI中Ⅲa和Ⅲb构象异构体的存在,以及烯烃旋转