【摘要】 合成了五种带有不同取代基的水杨醛缩芳胺类席夫碱,并利用循环伏安法研究其分别在0.1 mol.L-1的LiClO4-无水乙醇溶液以及含30%(V∶V)无水乙醇的B-R缓冲溶液(pH=7~11)中玻碳电极上的电化学行为.实验结果表明,席夫碱(CHN)基团在玻碳电极上能够被还原,并且CHN基团的电化学还原是受扩散控制的不可逆过程,取代基对CHN基团的电化学还原有一定的影响,pH增大使CHN基团的还原电位负移,推断了CHN基团在玻碳电极上电化学还原的反应机理.更多还原

【Abstract】 The electrochemical reduction behaviour of Schiff base on glassy carbon electrode was investigated in ethanol and 30%(V∶V) ethanolic B-R buffer solutions(pH=7～11) respectively using cyclic voltammetry technique.Experimental results rvealed that the reduction of Schiff base on glassy carbon electrode was irreversible,and the electrode reaction was proved to be diffusion-controlled process.The influence of the substituent group on salicylidene ring and the different pH(7～11) to the electrochemical reduction of()(CH)(N)() group were illustrated and discussed.The mechanism for the electrochemical reduction process of()(CH)(N)() gropu on the glassy carbon electrode is proposed.更多还原