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以杯[4]芳烃和对氨基苯磺酸为原料,经重氮化-偶联反应合成了对磺酸基苯偶氮杯[4]芳烃,并使用紫外吸收光谱、红外吸收光谱、核磁共振等技术对其进行表征分析.首次以CH_3COOH-CH_3COONa为缓冲溶液,使用循环伏安法研究对磺酸基苯偶氮杯[4]芳烃的电化学行为.结果表明,当扫描电位在-0.5~1 V时,有1对氧化还原峰,其中氧化峰电位为0.302 V,还原峰电位为-0.003 V,且峰电流与峰电位均与扫描速率呈线性关系,推测该峰的形成受扩散控制影响,反应为动力学准一级可逆反应.进一步利用多种电化学手段研究该电极反应,并求得动力学参数,反应活化能为14.84 k J·mol~(-1).
The sulfonated phenyl azo calix [4] arene was synthesized via diazotization-coupling reaction using calix [4] arene and p-aminobenzenesulfonic acid as raw materials. The UV-Vis absorption spectra, Etc. The electrochemical behavior of sulfobenzophenazina [4] arene was studied by cyclic voltammetry using CH_3COOH-CH_3COONa as the buffer solution for the first time.The results showed that when the scan potential was between -0.5 ~ At 1 V, there is one pair of redox peaks, of which the oxidation peak potential is 0.302 V and the reduction peak potential is -0.003 V, and the peak current and the peak potential both have a linear relationship with the scanning rate, suggesting that the formation of the peak is affected by the diffusion control , And the reaction was quasi-first-order reversible reaction.Using a variety of electrochemical methods to study the electrode reaction and obtain kinetic parameters, the activation energy was 14.84 kJ · mol -1.