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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Synthesis and characterization of an immobilizable photochemical molecular device for H-2-generation
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Synthesis and characterization of an immobilizable photochemical molecular device for H-2-generation

机译：固定化H-2代光化学分子装置的合成与表征

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摘要

With [Ru-II(bpyMeP)(2)tpphzPtCl(2)](2+) (4) a molecular photocatalyst has been synthesized for visible-light-driven H-2-evolution. It contains the ligand bpyMeP (4,4'-bis(diethyl-(methylene)-phosphonate)-2,2'-bipyridine) with phosphate ester groups as precursors for the highly potent phosphonate anchoring groups, which can be utilized for immobilization of the catalyst on metal-oxide semiconductor surfaces. The synthesis was optimized with regard to high yields, bpyMeP was fully characterized and a solid-state structure could be obtained. Photophysical studies showed that the photophysical properties and the localization of the excited states are not altered compared to similar Ru-complexes without anchoring group precursors. (4) was even more active in homogenous catalysis experiments than [RuII(tbbpy)(2)tpphzPtCl(2)](2+) (6) with tbbpy (4,4'-bis(tbutyl)-2,2'-bipyridine) as peripheral ligands. After hydrolysis (4) was successfully immobilized on NiO, suggesting that an application in photoelectrosynthesis cells is feasible.
机译：与[Ru-II（bpyMeP）（2）tpphzPtCl（2）]（2+）（4）合成了一种分子光催化剂，用于可见光驱动的H-2-演化。它包含具有磷酸酯基团的配体bpyMeP（4,4'-双（二乙基（（亚甲基）-膦酸酯）-2,2'-联吡啶））作为强效膦酸酯锚定基团的前体，可用于固定在金属氧化物半导体表面上的催化剂。就高收率而言，对合成进行了优化，对bpyMeP进行了充分表征，并获得了固态结构。光物理研究表明，与没有锚定基团前体的类似钌络合物相比，光物理性质和激发态的定位没有改变。 （4）在均相催化实验中比[tbpy（4,4'-bis（tbutyl）-2,2'-）的[RuII（tbbpy）（2）tpphzPtCl（2）]（2+）（6）更具活性联吡啶）作为外围配体。水解（4）成功地固定在NiO上后，表明在光电合成细胞中的应用是可行的。

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