REDOX PROPERTIES OF FERROCENYLALKANE THIOLS COADSORBED WITH LINEAR NORMAL-ALKANETHIOLS ON POLYCRYSTALLINE BULK GOLD ELECTRODES

被引：164

作者：

CREAGER, SE

ROWE, GK

机构：

[1] Department of Chemistry, Indiana University, Bloomington

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 246卷 / 01期

关键词：

FERROCENYLALKANETHIOLS; ALKANETHIOLS; GOLD ELECTRODE;

D O I：

10.1016/S0003-2670(00)80680-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Mixed monolayer films were prepared from ethanol solutions of omega-ferrocenylhexanethiol and simple C4-C10 n-alkanethiols. The following trends are observed as the alkanethiol chain length increases: the amount of immobilized ferrocene decreases and the redox potential for ferrocene oxidation becomes more positive. The redox potential ranges from + 0.20 V vs. Ag/AgCl for the shorter homologues to +0.39 V for coadsorption with n-decanethiol. Further, the potential scales with log[C(HClO4], confirming that ion pairing occurs. A localized non-polar environment created by the coadsorbed alkanethiols is postulated.

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页码：233 / 239

页数：7

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