Heteronuclear Fe(μ-H)Zn hydride Cp*Fe(1,2-Cy₂PC₆H₄)HZnEt (3) undergoes reversible intramolecular C_aryl-H reductive elimination through coupling of the cyclometalated phosphinoaryl ligand and the hydride, giving rise to a formal Fe(0)–Zn(II) species. Addition of CO intercepts this equilibrium, affording Cp*(Cy₂PPh)(CO)Fe-ZnEt that features a dative Fe–Zn bond. Significantly, this system achieves bimetallic H₂ addition, as demonstrated by the transformation of the monohydride Fe(μ-H)Zn to a deuterated dihydride Fe–(μ-D)₂–Zn upon reaction with D₂.

中文翻译：

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铁锌氢化物介导的双金属 H2 加成和分子内芳基 -H 活化

异核Fe(μ-H)Zn氢化物Cp*Fe(1,2-Cy ₂ PC ₆ H ₄ )HZnEt ( 3 )通过环金属化膦芳基配体与氢化物的偶联发生可逆的分子内C_芳基-H还原消除，产生到正式的 Fe(0)–Zn(II) 物种。添加 CO 会破坏这种平衡，得到具有配位 Fe-Zn 键的Cp*(Cy ₂ PPh)(CO)Fe-ZnEt。值得注意的是，该系统实现了双金属 H ₂加成，如一氢化物 Fe(μ-H)Zn在与 D ₂反应后转化为氘代二氢化物 Fe–(μ-D) ₂ –Zn 所证明的。