3] (1). In the course of the reaction, one Cp ligand per yttrium was redistributed, thus leading to the formation of [Cp3Y] as a side product. To avoid the observed ligand redistribution, other solvents were investigated. The reaction of [Cp2Y(CH2SiMe3)(thf)] with [HW(CO)3Cp] in acetonitrile afforded the dinuclear complex [CpW(CO)2(μ-CO)}YCp2(NCMe)2] (2). The reaction of the yttrium dialkyl complex
钇单烷基 [Cp2Y(CH2SiMe3)(thf)](Cp =
环戊二烯基,thf =
四氢呋喃,Me = 甲基)与氢羰基
钨配合物 [HW(CO)3Cp] 在 THF 中的
烷烃消除产生了三核配合物 [ CpW(CO)2(μ-CO)}2YCp(thf)3] (1)。在反应过程中,每个
钇一个 Cp
配体被重新分配,从而导致 [Cp3Y] 作为副产物的形成。为了避免观察到的
配体重新分布,研究了其他溶剂。[Cp2Y(CH2SiMe3)(thf)] 与 [HW(CO)3Cp] 在
乙腈中的反应得到双核复合物 [CpW(CO)2(μ-CO)}YCp2(NCMe)2] (2)。
钇二烷基配合物 [Y(CH2SiMe3)2(OC6H3tBu2-2,6)(thf)2] 与 [HW(CO)3Cp] 在
甲苯中的反应得到聚合化合物 [CpW(CO)2(μ-CO) )}2Y(OC6H3tBu2-2,6)]n (3)