Polarography of thiocyanato-derivatives of thiophene

  • F. M. Stoyanovich
  • S. G. Mairanovskii
  • Ya. L. Gol'dfarb
  • I. A. D'yachenko
Physical Chemistry


  1. 1.

    The polarographic reduction of 17 thiocyanatothiophenes with various functional substituants was studied. The mechanism of the reduction of the thiocyanato-group in this series does not differ from that known for other thiocyanato-derivatives. The mercapto-group formed in the reduction exists in the form of the thienylmercaptide anion in neutral unbuffered medium.

  2. 2.

    Satisfactory correlation is observed between the half-wave potential and the Hammett constants for 5-substituted 2-thiocyanatothiophenes with a value of the slope 0.48±0.03. On the basis of the correlation equation obtained, an approximate value of −(0.14±0.06) was calculated for the Hammett constant of the substituent S.



Thiophene Correlation Equation Polarography Satisfactory Correlation Hammett Constant 
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Copyright information

© Consultants Bureau 1972

Authors and Affiliations

  • F. M. Stoyanovich
    • 1
  • S. G. Mairanovskii
    • 1
  • Ya. L. Gol'dfarb
    • 1
  • I. A. D'yachenko
    • 1
  1. 1.N. D. Zelinskii Institute of Organic ChemistryAcademy of Sciences of the USSRUSSR

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