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电化学(中英文) ›› 2003, Vol. 9 ›› Issue (1): 104-107. 

• 研究论文 • 上一篇    下一篇

Cd(Ⅱ)在DMSO中的电还原及其与香豆素衍生物的配位作用

宋继国,宋化灿,杨绮琴,陈义文,许遵乐   

  1. 中山大学化学与化学工程学院,中山大学化学与化学工程学院,中山大学化学与化学工程学院,中山大学化学与化学工程学院,中山大学化学与化学工程学院 广东广州510275 ,广东广州510275 ,广东广州510275 ,广东广州510275 ,广东广州510275
  • 收稿日期:2003-02-28 修回日期:2003-02-28 出版日期:2003-02-28 发布日期:2003-02-28

Electroreduction of Cd(Ⅱ) in DMSO and Complexation of Cd(Ⅱ) with Coumarin Derivates

SONG Ji_guo, SONG Hua_can*,YANG Qi_qin,CHEN Yi_wen, XU Zun_le   

  1. (School of Chem. and Chem.Eng.,Zhongshan University, Guangzhou 510275,China)
  • Received:2003-02-28 Revised:2003-02-28 Published:2003-02-28 Online:2003-02-28

摘要:  合成容易脱水的对甲苯磺酸镉,首次用于有机溶剂中的电化学研究.Cd( )在Cd(p-CH3C6H4SO3)2+TBAP+DMSO中Pt电极上还原时,首先出现镉的欠电位沉积,然后电沉积镉.4-甲基-7-羟基香豆素、3-氨基香豆素与镉离子配位,使镉离子的还原电位向负方移动.

关键词: 对甲苯磺酸镉, 香豆素, DMSO, Cd()的电还原, 欠电位沉积, 配位作用

Abstract: Cadmium p_toluenesulfonate was synthesized and tested electrochemically for the first time. This salt can lose all the hydrated water easily and the dehydrated salt do not deliquesce in the air.Hence,the cadmium p_toluenesulfonate is suitable for the electrochemical studies in organic solvents.When the Cd(Ⅱ) reduced on Pt electrode in Cd(pCH3C6H4SO3)2+TBAP+DMSO, underpotential deposition of cadmium occurred at first, and then cadmium deposited. 4_Methyl_7_hydroxylcoumarin and 3_aminocoumarin coordinate with Cd(Ⅱ) respectively, as a result the reductive potentials of Cd(Ⅱ) moved to the negative direction.

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