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用循环伏安法研究了双水杨醛缩乙二胺烷基钴(Ⅲ)配合物[RCo(Salen),R=CH_3,C_2H_5,n-C_4H_9,i-C_4H_9]在热解石墨电极上的电化学行为。RCo(Salen)的电化学氧化或还原均为可逆的单电子过程;氧化时钴的价态变化为Co~Ⅲ→Co~Ⅳ,还原时为Co~Ⅲ→Co~Ⅱ→Co~Ⅰ,并伴有Co─C键的断裂和R·自由基的产生。氧化产物和还原产物均不稳定,R影响电化学性质,随着R给电子能力的增强,氧化反应的电位和还原反应的电位均负移。光谱电化学实验的结果提供了进一步的验证.
The cyclic voltammetry was used to study the effect of the cobalt (Ⅲ) complexes of bis-salicylaldecanedial ethylenediamine on the pyrolytic graphite electrodes [RCo (Salen), R = CH_3, C_2H_5, n_C_4H_9, i_C_4H_9] Electrochemical behavior. The electrochemical oxidation or reduction of RCo (Salen) is a reversible one-electron process. The oxidation states of cobalt are Co ~ Ⅲ → Co ~ Ⅳ and Co ~ Ⅲ → Co ~ Ⅱ → Co ~ Ⅰ With Co ─ C bond fracture and R · free radical generation. Oxidation products and reduction products are not stable, R affect the electrochemical properties, with the R to enhance the electron capacity, the oxidation reaction potential and the reduction reaction are negative shift. The results of the spectroelectrochemical experiments provided further validation.