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本文以电化学及现场光谱电化方法在非质子介质已腈中研究了二乙胺基二硫代甲酸合钢(Ⅱ)配合物Cu(Ⅱ)(DEADTF)2氧化还原行为,指出该配合物在乙腈溶液中可经历一步可逆单电子还原反应及一步不可逆单电子还原反应,同时还可发生一步可逆单电子氧化过程及一步不可逆单电子氧化过程。现场光谱电化学研究结果表明其第一还原反应发生在中心金属铜上,形成一价钢配合物,其第一氧化反应也发生在金属铜上,形成三价铜配合物,而其第二还原和第二氧化反应则均发生在配体上。
In this paper, we studied the redox behavior of Cu (Ⅱ) (DEADTF) 2 diethyldithiocarbamate (Ⅱ) complex in nitrile in aprotic medium by electrochemical method and field spectrophotometry. One-step reversible one-electron reduction reaction and one-step irreversible one-electron reduction reaction can be carried out in acetonitrile solution. One-step reversible one-electron oxidation process and one-step irreversible one-electron oxidation process can also occur. The results of on-site spectroelectrochemistry show that the first reduction reaction takes place on the central metal copper to form a monovalent steel complex. The first oxidation reaction also takes place on the metallic copper to form the trivalent copper complex, while the second reduction And the second oxidation reaction are all on the ligand.