A molecular precatalyst for water oxidation based on half-sandwich iridium fragment

作者：He, Qing-Ya; Shi, Hua-Tian; Wei, Xianwen; Yu, Wei-Bin^*

来源：Journal of Organometallic Chemistry, 2016, 818: 1-6.

DOI：10.1016/j.jorganchem.2016.04.008

• Half-sandwich iridium
• Organometallic chemistry
• Cyclic voltammetry
• Water oxidation
• Molecular catalyst
• TOF

A newly Ir-mediated complex constructed by treating [Cp*IrCl2](2) with an azo-compound [sodium (E)-4-((3-hydroxynaphthalen-2-yl)diazenyl)benzenesulfonate (HL)], was fully characterized by NMR, EA, TGA, IR and single crystal X-ray diffraction to reveal its molecular structure with mononuclear framework. Cyclic voltammetry (CV) was performed on detecting its electronic properties, affording potential application of catalyzing water oxidation to evolve oxygen. Moreover, the complex utilized as precatalyst of WOC was preformed under mild conditions, offering a high turnover frequency (TOF) which reached up to 4692.1 M-1 S-1. Meanwhile, the mechanism of water-oxidation reaction was elaborated in detail in this work.

• 出版日期2016-9-1
• 单位安徽工业大学