新颖结构的钛锆钒异核双金属配合物[Cp_2V(μ-η~2:η~4-PhC_4Ph)MCp_2](M=Ti，Zr)

室温下，Cp_2Ti(C≡CPh)_2]和Cp_2Zr(C≡CPh)_2]分别与二茂钒作用，首次 合成了Cp_2V(μ-η~2:η~4-PhC_4Ph)MCp_2] 1 (M = Ti), 2 (M = Zr)。用元素 分析、质谱、磁矩、红外和拉曼光谱对配合物进行了表征，两个配合物具有相似的 磁化率，配合物2的晶体结构分析表明PhC_4Ph通过内部两个碳原子键合到Cp_2V上 ，内部两个碳原子和外部两个碳原子均与Cp_2Zr键合，丁二烯骨架内部的两个碳原 子都具有四配位的平面结构。用核磁跟踪技术初步探讨了合成反应机理。

Novel Heterometamc Complexes[ Cp2V(μ-η2:η4-butadiyne)MCp2] (M = Ti, Zr)

The reaction of Cp_2Ti(C≡CPh)_2], Cp_2Zr(C≡CPh)_2]with vanadocene in toluene at room temperature gives heterodimetallic complexes Cp_2V(μ-η~2:η~4-butadiyne)MCp_2] 1 (M = Ti), 2 (M = Zr), respectively. These compounds, which have been characterized by elemental analysis, mass spectrometry, IR and Raman spectroscopy, exhibit similar magnetic susceptibilities. According to an X-ray diffraction analysis of 2, the Cp_2V and Cp_2Zr metallocene moieties are bonded to butadiene (or butadiyne) framework via the two internal carbon atoms for Cp_2V, and via both the two internal carbon atoms and the two external carbon atoms for Cp_2Zr. The distances and angles observed around the internal carbon atoms of the butadiene framework indicate that both internal carbon atoms of butadiene skeleton are planar and tetracoordinated.