Synthesis and Catalytic Water Oxidation Activities of Ruthenium Complexes Containing Neutral Ligands
作者:Yunhua Xu、Lele Duan、Torbjörn Åkermark、Lianpeng Tong、Bao-Lin Lee、Rong Zhang、Björn Åkermark、Licheng Sun
DOI:10.1002/chem.201100274
日期:2011.8.16
Two dinuclear and one mononuclear ruthenium complexes containing neutral polypyridyl ligands have been synthesised as pre‐water oxidation catalysts and characterised by 1H and 13C NMR spectroscopy and ESI‐MS. Their catalytic water oxidation properties in the presence of [Ce(NH4)2(NO3)6] (CeIV) as oxidant at pH 1.0 have been investigated. At low concentrations of CeIV (5 mM), high turnover numbers of
已经合成了两种含中性多吡啶基配体的双核和一种单核钌配合物作为预水氧化催化剂,并通过1 H和13 C NMR光谱法和ESI-MS进行了表征。研究了它们在[Ce(NH 4)2(NO 3)6 ](Ce IV)作为氧化剂在pH 1.0的存在下的催化水氧化性能。在低浓度的Ce IV(5 m M)下,已经实现了高达4500的高周转率。一项18 O标记实验确定,已演化的O 2中的两个O原子来自水。电化学研究和电喷雾电离质谱分析的结合表明,配位的4-甲基吡啶和游离水之间的配体交换产生了Ru水族物质,成为真正的水氧化催化剂。