Chinese Journal of Applied Chemistry

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Synthesis and Electrochemical Properties of Salen-type Copper(Ⅱ) and Nickel(Ⅱ) Complexes

WANG Jianhui, GUO Liqin, RUAN Wenjuan*, ZHU Zhiang   

  1. (College of Chemistry,Nankai University,Tianjin 300071,China)
  • Received:2013-04-07 Revised:2013-05-13 Published:2014-03-10 Online:2014-03-10
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.20671053)

Abstract: Two salen-type ligands and their metal complexes(ML1 and ML2, M=Cu or Ni, L1=N,N′-bis(4-hydroxysalicylidene)-2,2′-biphenyldiamine, L2=N,N′-bis(3,5-di-tert-butyl-salicylidene)-2,2′-biphenyldiamine) with tetradentate N2O2 coordinate mode were synthesized. These complexes were characterized with 1H nuclear magnetic resonance(1H NMR), ultraviolet-visible absorption spectroscopy(UV-Vis), Fourier transform infrared spectroscopy(FT-IR), mass spectrometry(MS), and elemental analyses. The electrochemical properties of the synthesized complexes were also studied by cyclic voltammetry(CV). The CV curves of CuL2 and NiL1 only contained a one-electron quasi-reversible redox peak in the range of -1.5~+1.5 V. In contrast, two redox peaks were observed in the CV curve of NiL2.

Key words: salen-type ligand, copper(Ⅱ) and nickel(Ⅱ) complexes, synthesis and characterization, cyclic voltammetry, electrochemical property

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