Electroactive chain-like compounds constructed from trimetallic clusters and 4,4'-bipyridine spacers: one-pot synthesis, characterization and surface binding.
Electroactive chain-like compounds constructed from trimetallic clusters and 4,4'-bipyridine spacers: one-pot synthesis, characterization and surface binding.
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DOI：
10.1039/c0dt01237h
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发表时间：
2011-02
影响因子：
4
通讯作者：
M. Abe;Atsushi Inatomi;Y. Hisaeda
中科院分区：
文献类型：
--
作者：
M. Abe;Atsushi Inatomi;Y. Hisaeda
本文报道了一系列新型链状化合物的合成和表征，其中氧代中心的三钌簇合物部分由4，4 '-联吡啶（4，4'-bpy）间隔基桥接。溶剂配位的三钌“单体”前体[Ru（3）O（CH（3）CO（2））（6）（CO）（CH（3）OH）（2）]与0.1等摩尔量的4，4 '-bpy在CH（3）OH中反应，得到含有“二聚体”至“四聚体”的链状化合物的混合物，其通过柱色谱法干净地分离，并通过光谱和电化学方法表征。循环伏安法表明，所有链状化合物在溶液中均表现出可逆的逐步氧化还原过程，并且三钌组分之间通过4，4 '-bpy桥的分子内偶联非常弱。研究了CO的光诱导解离和电极表面结合。
This paper reports the synthesis and characterization of a novel series of chain-like compounds where oxo-centered triruthenium cluster moieties are bridged by 4,4'-bipyridine (4,4'-bpy) spacers. A reaction of solvent-coordinated triruthenium "monomer" precursor [Ru(3)O(CH(3)CO(2))(6)(CO)(CH(3)OH)(2)] with a 0.1 equimolar amount of 4,4'-bpy in CH(3)OH gave mixture of chain-like compounds containing "dimers" to "tetramers" which were cleanly separated by column chromatography and characterized by spectroscopic and electrochemical methods. Cyclic voltammetry revealed that all chain-like compounds exhibit reversible and stepwise redox processes in solution with very weak intramolecular coupling between the triruthenium components across the 4,4'-bpy bridge. Photo-induced dissociation of CO from the compounds and electrode surface binding were also investigated.