二硫键桥联双二茂铁芳胺修饰纳米金电极  

Nano-Au electrode modified by disulphide-bond linked diferrocenylarylamines

作　　者：李长恭[1] 薛峰[1] 何欢欢[1] 焦星星 尚静艳[1] 

机构地区：[1]河南科技学院化学化工学院,河南新乡453003

出　　处：《化学研究与应用》2014年第1期69-73,共5页Chemical Research and Application

基　　金：国家自然科学基金项目(21072046)资助;国家级大学生创新创业训练计划项目(201210467022)资助

摘　　要：对或间二茂铁苯胺与对-乙酰硫基苯甲醛反应得到两个席夫碱,硼氢化钠还原席夫碱碳氮双键的同时对乙酰硫基脱保护,合成了两个二硫键桥联双二茂铁芳胺类化合物,p-(Fc-Ph-NH-CH2-Ph-S)2和m-(Fc-Ph-NHCH2-Ph-S)2。将化合物自组装到电沉积纳米金的玻碳电极上,制得稳定的修饰电极,此电极在LiClO4的乙腈溶液中有一对氧化还原峰,用循环伏安法和交流阻抗谱法研究了修饰电极的电化学性质,化合物m-(Fc-PhNH-CH2-Ph-S)2修饰纳米金/玻碳电极对芦丁有催化氧化作用。Two disulphide-bond linked diferrocenylarylamines, p-（ Fc-Ph-NH-CH2-Ph-S ） 2 and m-（ Fc-Ph-NH-CH2-Ph-S ） 2 , were prepared by reducing C-N double bond and deprotecting acetylthio group of two Schiff bases with sodium borohydride simultaneous-ly. These Schiff bases were synthesized by reacting p or m-ferrocenyphenylamines with p-acetylthiobenzaldehyde. Nano-Au/glassy carbon electrode,electrochemically deposited gold nanocrystals on glassy carbon electrodes, was modified by two disulphide-bond linked diferrocenylarylamines through self-assembly technique. The electrochemical behaviors of the modified nano-Au/glassy car-bon electrodes were explored in detail with cyclic voltammetry and electrochemical impedance spectroscope. These modified Au/glassy carbon electrodes exhibited a pair of reversible redox peaks in LiClO4-CH3 CN solution and showed electrocatalytic activity for oxidation of Rutin.

关 键 词：二硫键 纳米金 二茂铁 自组装 电化学 

分 类 号：O625.7[理学—有机化学]