Biomimic of the active site of [FeFe]‐hydrogenase containing bicyclic dithiols as bridging linker has been synthesized and characterized using different spectroscopic methods. The influence of this linker on the redox properties and the catalytic behavior of the resulted binuclear complex was investigated using cyclic voltammetry, showing that it can catalyze the reduction of protons to H₂ in the presence of acetic acid (AcOH). Moreover, the results revealed that the bicyclic dithiolene linker has improved the chemical stability of the reduced species and caused a shift to less negative potential in comparison to the synthetic models that mimic the active site of [FeFe]‐hydrogenase reported in the literature. In addition, the structure of the resulted binuclear complex mediated by bicyclic dithiols as bridging linker was confirmed by X‐ray diffraction analysis.

中文翻译：

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双环二硫醇衍生物介导的[FeFe]-加氢酶H-簇模拟物的合成与电化学研究

使用不同的光谱方法合成并表征了以双环二硫醇为桥联接头的[FeFe]-加氢酶活性位点的仿生物。使用循环伏安法研究了该连接剂对氧化还原性质和所得双核络合物催化行为的影响，表明其可以催化质子还原为H _2。在乙酸（AcOH）的存在下。此外，结果表明，与模仿文献中报道的[FeFe]-加氢酶活性位点的合成模型相比，双环二硫代戊二烯连接基改善了还原物种的化学稳定性，并导致向负电势的转变。此外，X射线衍射分析证实了由双环二硫醇作为桥联连接体介导的双核复合物的结构。