The NHC-coordinated trisilacyclopropylidene (A) is shown to behave as the basic component of an FLP used in combination with the Lewis acid B(C₆F₄H)₃ (i.e. B(2,3,5,6-C₆F₄H)₃). This FLP cleaves dihydrogen highly selectively at room temperature giving rise to the ionic compound [(NHC)SiH(Mes₂SiSiMes₂)][HB(C₆F₄H)₃] 1 in 90% isolated yield. Further reaction of the FLP with Ph₂NH and acetone yielded compounds [(NHC)SiH(Mes₂SiSiMes₂)][Ph₂NB(C₆F₄H)₃] 2 and [(NHC)SiH(Mes₂SiSiMes₂)][MeC(CH₂)OB(C₆F₄H)₃] 3 in 75% and 80% yield, respectively. Reaction of the FLP with N₂O results in the oxidation of the silylene center affording [((NHC)SiOB(C₆F₄H)₃)(Mes₂SiSiMes₂)] 4 in 53% yield. These products are spectroscopically characterized and an X-ray structure of 4 is reported.

中文翻译：

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分子间FLP系统，其衍生自NHC配位的三硅丙环亚丙基。

NHC配位的三硅丙环亚丙基（A）被证明是与路易斯酸B（C ₆ F ₄ H）₃（即B（2,3,5,6-C ₆ F ₄ H）₃）。该FLP在室温下高度选择性地裂解二氢，以90％的分离产率产生离子化合物[（NHC）SiH（Mes ₂ SiSiMes ₂）] [HB（C ₆ F ₄ H）₃ ] 1。FLP与Ph ₂ NH和丙酮进一步反应，生成化合物[（NHC）SiH（Mes ₂ SiSiMes ₂）] [Ph ₂ NB（C ₆ F ₄ H）₃ ] 2和[（NHC）SiH（Mes ₂ SiSiMes ₂）] [MeC（CH ₂）OB（C ₆ F ₄ H）₃ ] 3的75％和产率分别为80％。FLP与N ₂ O的反应导致亚甲硅烷基中心的氧化，以53％的收率得到[（（NHC）SiOB（C ₆ F ₄ H）₃）（Mes ₂ SiSiMes ₂）] 4。对这些产物进行光谱表征，并报道其X射线结构为4。