Acta Phys. -Chim. Sin. ›› 1992, Vol. 8 ›› Issue (05): 668-672.doi: 10.3866/PKU.WHXB19920518

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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

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