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首页> 外文期刊>Organometallics >Photochemical Cleavage of Pentamethylcyclopentadienyl-Gallium Bonds: An Alternative Approach to the Formation of Digallanes
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Photochemical Cleavage of Pentamethylcyclopentadienyl-Gallium Bonds: An Alternative Approach to the Formation of Digallanes

机译：五甲基环戊二烯基-镓键的光化学裂解：地高辛形成的另一种方法。

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摘要

The novel digallanes [GaN(Dipp)CH=CHN(Dipp)]_2 (3) (Dipp = 2,6-diisopropylphenyl) and [GaN(Dep)CH=CHN(Dep)]_2 (4) (Dep = 2,6-diethylphenyl) were obtained in quantitative yield by photoloysis of the 1-galla-2,5-diazoles (#eta#~1-Cp~*)GaN(Dep)CH=CHN(Dep)] (2), respectively. This alternative approach to the synthesis of digallanes demonstrates the efficiency of the Cp~* moiety as the leaving group in the formation of metal-metal bonds. Compounds 3 and 4 were characterized by spectroscopic and analytical data. Compound 3 could further be characterized by X-ray crystallography; its molecular structure is compared with the structures of some other digallanes. Density functional calculations for differently substituted digallanes are presented.
机译：新型的双gal聚糖[GaN（Dipp）CH = CHN（Dipp）] _ 2（3）（Dipp = 2,6-二异丙基苯基）和[GaN（Dep）CH = CHN（Dep）] _ 2（4）（Dep = 2，分别通过1-galla-2,5-diazoles（＃eta＃〜1-Cp〜*）GaN（Dep）CH = CHN（Dep）]的光合作用定量获得了6-二乙基苯基）。这种合成地加兰聚糖的替代方法证明了Cp *部分作为金属-金属键形成中的离去基团的效率。通过光谱和分析数据表征化合物3和4。化合物3可以进一步通过X射线晶体学表征;它的分子结构与其他一些地高聚糖的结构进行了比较。提出了不同取代的地高兰的密度泛函计算。

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