A cyclic voltammetric study of some porphyrazines


Yildiz G. , AKKUS H., GUL A.

MONATSHEFTE FUR CHEMIE, vol.132, no.6, pp.659-667, 2001 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 132 Issue: 6
  • Publication Date: 2001
  • Doi Number: 10.1007/s007060170079
  • Title of Journal : MONATSHEFTE FUR CHEMIE
  • Page Numbers: pp.659-667

Abstract

Some porphyrazines with dlimethylamino- or trimethylammoniumethylsulfanyl substituents were studied in dichloromethane or dimethylsulfoxide solution by cyclic voltammetric methods. The cyclic voltammogram of metal free octakis-(dimethyl-aminoethylsulfanyl)-porphyrazine is characterized by three one-electron reduction waves which show quasi-reversible behaviour at all sweep rates observed; the same holds for its cobalt(II) derivative. The quaternized octacationic derivative, however, exhibits four one-electron reduction waves which are reversible at all sweep rates. The reaction mechanisms and diffusion coefficients were investigated.