| Ac voltammetric and square wave voltammetric study of the self-assembled monolayers of thiol-functionalized viologen derivative |
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| 作者姓名： | LI Jing-Hong YANG Chun-He YAN Ju-Chao CHEN Wen-Qi DONG Shao-JunLaboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin China |
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| 作者单位： | LI，Jing-Hong YANG，Chun-He YAN，Ju-Chao CHEN，Wen-Qi DONG，Shao-JunLaboratory of Electroanalytical Chemistry，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun，Jilin 130022，China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China. |
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| 摘 要： | Electroactive self-assembled monolayers (SAMs) containing viologeu group are formed through the adsorption of thiol-functionalized viologen compound CH3(CH2)9V2+(CH2)8SH,where V2+ is N,N'-diaIkylbipyridinium (i.e.a viologen group),onto gold electrodes from methanol/water solution and its electrochemical behavior is investigated by Ac voltammetry and square wave voltam-metry,which have the high sensitivity against background charging.The viologen SAM formed is a sub-monolayer and the normal potentials corresponding to the two successive one-electron transfer processes of the active centers (viologen) are-360 mV and-750 mV (vs.Ag/AgCl) in 0.1mol/L phosphate buffer solutions (pH 6.96) respectively,and the standard electron transfer rate constant is 9.0s-1 The electrochemical behavior of this SAM in various solutions has been preliminarily discussed.
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Ac voltammetric and square wave voltammetric study of the self-assembled monolayers of thiol-functionalized viologen derivative |
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| LI,Jing-Hong YANG,Chun-He YAN,Ju-Chao CHEN,Wen-Qi DONG,Shao-JunLaboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin ,China.Ac voltammetric and square wave voltammetric study of the self-assembled monolayers of thiol-functionalized viologen derivative[J].Chinese Journal of Chemistry,1997,15(2):130-137. |
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| Authors: | LI Jing-Hong YANG Chun-He YAN Ju-Chao CHEN Wen-Qi DONG Shao-JunLaboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin China |
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| Institution: | LI,Jing-Hong YANG,Chun-He YAN,Ju-Chao CHEN,Wen-Qi DONG,Shao-JunLaboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,China |
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| Abstract: | Electroactive self-assembled monolayers (SAMs) containing viologeu group are formed through the adsorption of thiol-functionalized viologen compound CH3(CH2)9V2+(CH2)8SH,where V2+ is N,N'-diaIkylbipyridinium (i.e.a viologen group),onto gold electrodes from methanol/water solution and its electrochemical behavior is investigated by Ac voltammetry and square wave voltam-metry,which have the high sensitivity against background charging.The viologen SAM formed is a sub-monolayer and the normal potentials corresponding to the two successive one-electron transfer processes of the active centers (viologen) are-360 mV and-750 mV (vs.Ag/AgCl) in 0.1mol/L phosphate buffer solutions (pH 6.96) respectively,and the standard electron transfer rate constant is 9.0s-1 The electrochemical behavior of this SAM in various solutions has been preliminarily discussed. |
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| Keywords: | Self-assembled monolayers viologen Ac voltammetry square wave voltammetry |
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