物理化学学报 >> 1992, Vol. 8 >> Issue (05): 668-672.doi: 10.3866/PKU.WHXB19920518

研究简报 上一篇    下一篇

钯(II)配合物和氯化锌在DMF中阴极还原的动力学

章萍萍; 张五昌; 张挺芳; 周文娟; 王志勤   

  1. 华东师范大学化学系,上海 200062;中国科学院上海有机化学研究所,上海 200032
  • 收稿日期:1991-04-08 修回日期:1991-10-19 发布日期:1992-10-15
  • 通讯作者: 张五昌

The Electrode Kinetics of Cathodic Reduction of Pd(II)-Complex and Zinc Chloride in DMF

Zhang Ping-Ping; Zhang Wu-Chang; Zhang Ting-Fang; Zhou Wen-Juan; Wang Zhi-Qin   

  1. Department of Chemistry, East China Normal University, Shanghai 200062; Shanghai Institute of Organic Chemistry, Academia Sinica, Shanghai 200032
  • Received:1991-04-08 Revised:1991-10-19 Published:1992-10-15
  • Contact: Zhang Wu-Chang

关键词: 二氯二(三苯基膦)合钯(II), 氯化锌, 阴极还原, 电极过程动力学参数

Abstract: In this paper the electrode kinetics of cathodic reduction of dichloro-bis(triphenyl-phosphine) palladium complex and zinc chloride in DMF was studied. Using electro-chemical techniques we found that the reduction of Pd(PPh_3)_2Cl_2 is irreversible and is charge transfer controlled. The J~0(exchange current) and α(transfer coefficient) were 5.67×10~(-8) A and 0.15 respectively. We also confirmed that the reduction of ZnCl_2 in DMF is diffusion-charge transfer controlled.

Key words: Dichloro-bis(triphenylphosphine) palladium, Zine chloride, Cathodic reduction, Kinetics parameters of electrode processes