Studies on Mixed-Valence Compounds(Ⅱ)─Electrochemical and in situ UV-Vis-Near-IR and FTIR Spectroelectrochemical Studies of Mixed-Valence Heteropolyanion [HAs2Mo18O62]n- in Aprotic Media

Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (5): 772.

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Studies on Mixed-Valence Compounds(Ⅱ)─Electrochemical and in situ UV-Vis-Near-IR and FTIR Spectroelectrochemical Studies of Mixed-Valence Heteropolyanion [HAs₂Mo₁₈O₆₂]^n- in Aprotic Media

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

Department of Chemistry, Jilin University, Changchun, 130023

Received:1996-04-24 Online:1997-05-24 Published:1997-05-24

Abstract

Abstract: The mixed-valence heteropolyanion [HAs₂Mo₁₈O₆₂]^n- (n= 6, 7, 8, 9) were inves tigated by electrochemical and in-situ UV-Vis-Near-IRand FTIRspectroelectrochemical methods in aprotic media.The results indicate that the heteropolyanion [HAs₂Mo₁₈O₆₂]_{5- with four step one electron transfer reductions and the mixed-valence heteropolyanions [HAs₂Mo₁₈O₆₂]^n- (n = 6, 7, 8, 9) were formed after electroreduction.The mixed-valence heteropolyanions have IVCTbands in Near-IRspectral region-The characteristic absorption of Mo = Odouble bond and the Mo-Obridge bond shift to low wavenumber after electrore duction.}

Key words: Mixed-valence compound, Electroreduction, In situ spectroelectrochemistry, Aprotic media

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ZHANG Shu-Yan, SUN Hao-Ran, YANG Guo-Yu, XU Ji-Qing . Studies on Mixed-Valence Compounds(Ⅱ)─Electrochemical and in situ UV-Vis-Near-IR and FTIR Spectroelectrochemical Studies of Mixed-Valence Heteropolyanion [HAs₂Mo₁₈O₆₂]^n- in Aprotic Media[J]. Chem. J. Chinese Universities, 1997, 18(5): 772.

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Studies on Mixed-Valence Compounds(Ⅱ)─Electrochemical and in situ UV-Vis-Near-IR and FTIR Spectroelectrochemical Studies of Mixed-Valence Heteropolyanion [HAs₂Mo₁₈O₆₂]^n- in Aprotic Media

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