【摘要】 在离子液体中,研究了CoL（钴希夫碱配合物）的电化学行为,并进一步探讨了其对氯苄还原以及PhCH₂Cl与CO₂反应的催化特性.CoL在离子液体中呈现一对由扩散控制的单电子可逆氧化还原峰,通过电化学行为研究发现,其氧化还原峰电位不易随金属有机配合物的配体和离子液体阴离子的变化而变化,并求得了相应的扩散系数.同时,循环伏安图表明该体系能对PhCH₂Cl的还原起催化作用,反应经历一个ECE过程,另外,该体系还能催化PhCH₂Cl与CO₂反应,通过恒电位电解得到（PhCH₂）₂CO,说明常温常压下,CO₂可以通过CoL催化在离子液体中进行固定,得到新的有机化合物。更多还原

【Abstract】 The electrochemical behavior of CoL （cobalt Schiff base complex） has been studied in ionic liq- uids.Its catalytic activity towards the reduction of PhCH₂Cl and the reaction between PhCH₂Cl and CO₂ has also been investigated.CoL shows a diffusion controlled one-electron reversible peak couple in ionic liq- uids.The electrochemical behavior shows that the peak potential will not be influenced by the Schiff base ligand and the anion of the ionic liquids.CoL could catalyze the reduction of PhCH₂Cl by the voltammo- grams.The mechanism involves a one-electron reduction and a chemical reaction followed by another one-electron reduction.And this system could also catalyze the reaction between PhCH₂Cl and CO₂.Con- trolled-potential electrolysis led to （PhCH₂）₂CO,indicating that CO₂ can be fixed in ionic liquids by the ca- talysis of CoL.更多还原