Acta Phys. -Chim. Sin. ›› 2001, Vol. 17 ›› Issue (02): 128-133.doi: 10.3866/PKU.WHXB20010208

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Spectra and Electrocatalytic Reduction of Dioxygen of Mesotetrakis (4Nbenzylpyridyl)porphyrinmetaloxo Cluster Supramolecular Complex

Liu Shu-Qing;Xu Ji-Qing;Sun Hao-Ran;Li Dong-Mei;Zeng Qing-Xin;Song Yu-Jiang   

  1. Department of Chemistry,Jilin University,Changchun　130023
  • Received:2000-04-27 Revised:2000-08-21 Published:2001-02-15
  • Contact: Xu Ji-Qing E-mail:xjq@mail.jlu.edu.cn

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Abstract: Spectral behavior of mesotetrakis(4Nbenzylpyridyl)porphyrinmetaloxo cluster (SiW12O4－40) supramolecular systems in aqueous solution was studied by UVvisible spectrometry.The spectral evolution and Job's plots reveal that the stable aggregates contain equal numbers of the cationic porphyrins and the anionic SiW12O4－40.The electrocatalytic behavior of reducing O2 for the 1∶1 supramolecular complex [CoTMPyP][SiW12O40],was also investigated,the supramolecular complex might be hopeful for being used as a new material of modified electrodes for electrocatalytic reduction of O2.

Key words: Cationic porphyrin, Metal-oxo cluster anions, Supramolecular complex, 　Electrocatalytic reduction of O2