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Cobalt Triarylcorroles with Sterically Hindered Haloginated Phenyl Rings:Synthesis,Crystal Structure and Catalytic Activity for Electroreduction of Dioxygen

郭瑞欧忠平叶丽娜黄文浩薛兆历汤继俊房媛媛

School of Chemistry and Chemical Engineering,Jiangsu University

摘要:Three new cobalt triarylcorroles with sterically hindered haloginated phenyl rings were synthesized and characterized by UV-vis, ~1H NMR spectroscopy, mass spectrometry and electrochemistry. The compounds are represented as(Ar)3Cor Co(PPh3), where Cor is a trianion of the corrole macrocycle and Ar is a 2-Cl Ph(1), 2,6-diC l Ph(2) or 2,6-diF Ph(3) group on each of the three meso-positions. The structures of 1 and 3 were characterized in the solid state by single-crystal X-ray analysis. Rotating-disk electrode was utilized to examine the electrocatalytic activity of the corroles for reduction of O2 in 1.0 MHClO4. Effect of the sterically hindered meso-substituents on UV-vis spectra and redox potentials as well as the electrocatalytic activity for reduction of dioxygen was discussed.
  • DOI:

    10.14102/j.cnki.0254-5861.2011-1156

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  • 分类号:

    O627.8;O643.36

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