2,6-二(苯并咪唑基)对甲苯酚的合成和表征

以2,6-二甲酰基对甲苯酚和邻苯二胺作为起始原料,在常温下经缩合反应一步合成了含双苯并咪唑基的新型化合物-2,6-二(苯并咪唑基)对甲苯酚,其结构经IR、1HNMR、质谱(MS)及元素分析(Element analysis)、得到了确证.该合成方法简单,提纯方便,是合成含双苯并咪唑基化合物的一个新方法.     

Electrochemical characteristics of poly(ophenylendiamine) film electrodes in phosphatic solution

The electrochemical characteristics of poly(o-phenylendiamine) (POPD) film modified electrodes have been investigated using different electrochemical techniques.The main interest is focused on the effect of potential and film thickness on the electrode process.Good agreement has been found for the apparent diffusion coefficient estimated by chronocoulometry and impedance spec-troscopy.The charge transfer process within POPD films is diffusion processes at negative and positive overpotentials and electron hopping mechanism at formal potential.The POPD film conductivity of the oxidized state is better than that of the reduced state.For all electrode processes,the H+ may penetrate the film/electrolyte interface and take part in charge transfer or protonation-deprotonation of phenazine rings.