Application of an ultramicroelectrode in homogeneous catalytic reactions-part IV. electrocatalytic reduction of organohalides by metalloporphyrin at ultramicroelectrode

  • Che G
  • Dong S
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Abstract

The electrocatalytic reduction of 1,2-dibromoethane and tetrabromoethane with CoTPP in DMF solutions containing 0.1 M TBAP was investigated at a Pt ultramicroelectrode. The experimental results indicated that CoTPP obviously exhibited catalytic activity for 1,2-dibromoethane and tetrabromoethane. The rate constants of 1,2-dibromoethane and tetrabromoethane in this system were calculated to be 0.14 × 103and 0.5 × 102M-1S-1, respectively. The reaction mechanism of 1,2-dibromoethane and tetrabromoethane reduction electrocatalysed by CoTPP in 0.1 M TBAP DMF solution is discussed. © 1993.

Author-supplied keywords

  • homogeneous catalysis
  • kinetics
  • metalloporphyrin.
  • organohalides
  • ultramicroelectrode

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