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首页> 外文期刊>Chemistry: A European journal >Synthesis, characterization, and reactivity of dyad ruthenium-based molecules for light-driven oxidation catalysis
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Synthesis, characterization, and reactivity of dyad ruthenium-based molecules for light-driven oxidation catalysis

机译：二元钌基分子的合成，表征和反应性，用于光驱动氧化催化

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摘要

Dyad molecules containing the 2,3,5,6-tetrakis(2-pyridyl)pyrazine (tppz) ligand with general formula [(tpy)Ru(μ-tppz)Ru(X)(L-L)]~(n+) (X=Cl, CF_3COO, or H_2O; L-L=2,2′-bipyridine (bpy) or 3,5-bis(2-pyridyl)pyrazole (Hbpp); tpy=2,2′:6′,2"-terpyridine) have been prepared, purified, and isolated. The complexes have been characterized by analytical and spectroscopic techniques and by X-ray diffraction analysis for two of them. Additionally, full electrochemical characterization based on cyclic voltammetry, differential pulse voltammetry, and square wave voltammetry has been also performed. The pH dependence of the redox couples for the aqua complexes have also been studied and their corresponding Pourbaix diagrams drawn. Furthermore, their capacity to catalytically oxidize organic substrates, such as alcohols, alkenes, and sulfides, has been carried out chemically, electrochemically, and photochemically. Finally, their capacity to behave as water oxidation catalysts has also been tested.
机译：含有2,3,5,6-四（2-吡啶基）吡嗪（tppz）配体且具有[[tpy）Ru（μ-tppz）Ru（X）（LL）]〜（n +）（X = Cl，CF_3COO或H_2O; LL = 2,2'-联吡啶（bpy）或3,5-双（2-吡啶基）吡唑（Hbpp）; tpy = 2,2'：6'，2“-吡啶制备，纯化和分离了配合物，并通过分析和光谱技术以及两种方法的X射线衍射分析对其进行了表征，此外，还基于循环伏安法，差分脉冲伏安法和方波伏安法进行了全面的电化学表征。还研究了氧化还原对对水络合物的pH依赖性，并绘制了相应的Pourbaix图，此外，还对它们催化氧化有机底物（如醇，烯烃和硫化物）的能力进行了化学反应。最后，还测试了它们作为水氧化催化剂的能力。

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