Electrochemical Reduction of Thionyl Chloride by Tetradentate Schiff Base Transition Metal(II) Complexes : Catalytic Effects

네자리 Schiff Base 전이금속(II) 착물들에 의한 SOCl$_2$의 전기화학적 환원 : 촉매 효과

  • Woo-Seong Kim (Department of Chemistry, Chonnam National University) ;
  • Yong-Kook Choi (Department of Chemistry, Chonnam National University) ;
  • Chan-Young Kim (Department of Chemistry, Chonnam National University) ;
  • Ki-Hyung Chjo (Department of Chemistry, Chonnam National University) ;
  • Jong-Soon Kim (Department of Chemistry, Chonnam National University)
  • 김우성 (전남대학교 자연과학대학 화학과) ;
  • 최용국 (전남대학교 자연과학대학 화학과) ;
  • 김찬영 (전남대학교 자연과학대학 화학과) ;
  • 조기형 (전남대학교 자연과학대학 화학과) ;
  • 김종순 (전남대학교 자연과학대학 화학과)
  • Published : 1993.08.20

Abstract

Electrochemical reduction of thionyl chloride has been carried out at glassy carbon and molybdenum electrodes, the surface of which is modified by binuclear tetradentate schiff base Co(II), Ni(II),Cu(II) and Fe(II) complexes. The catalyst molecules of transition metal(II) complexes were adsorbed on the electrode surface and reduced thionyl chloride resulting in a generation of oxidized catalyst molecules. There was an optimum concentration for each catalyst compound. The catalytic effects of SOCl$_2$ reduction were larger on glassy carbon electrodes compared to molybdenum electrodes and enhancements in reduction current of up to 120${\%}$ at the glassy carbon electrodes. The reduction currents of thionyl chloride were increased and the reduction potentials were shifted to the negative potential when scan rates became faster. The reduction of thionyl chloride was proceed to diffusion controlled reaction.

Keywords

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