The New Experimental Evidence for Protonational Site of Heteropoly Blue──Investigation by in-situ FTIR Spectroelectrockemical Method

Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (6): 955.

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The New Experimental Evidence for Protonational Site of Heteropoly Blue──Investigation by in-situ FTIR Spectroelectrockemical Method

ZHANG Shu-Yan, SUN Hao-Ran, XING Yong-Heng, YANG Guo-Yu, XU Ji-Qing

Department of Chemistry, Jilin University, Changchun, 130023

Received:1996-11-12 Online:1997-06-24 Published:1997-06-24

Abstract

Abstract: The electrochemical reduction processes of heteropolyanion PMo₁₂O₄₀^3- in protonic media were investigated by in-situ FTIRspectroelectrochemical method' Experimental re-sults indicated that the protonational site of electroreduction product HnPMoMo₁₂O₄₀^3-(n= 2, 4,6, 8) was on bridge oxygen atom- The infrared characteristic absorption peaks of Mo = 0double bound shift to higher frequence after electroreduction of heteropo1yanion PMo₁₂O₄₀^3-.This result can be interpreted from the viewpoint of induction effect of proton.

Key words: Protonation site, In-situ FTIR spectroelectrochemistry, Heteropoly blue

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ZHANG Shu-Yan, SUN Hao-Ran, XING Yong-Heng, YANG Guo-Yu, XU Ji-Qing. The New Experimental Evidence for Protonational Site of Heteropoly Blue──Investigation by in-situ FTIR Spectroelectrockemical Method[J]. Chem. J. Chinese Universities, 1997, 18(6): 955.

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The New Experimental Evidence for Protonational Site of Heteropoly Blue──Investigation by in-situ FTIR Spectroelectrockemical Method

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