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Keywords:

  • Semiconductivity;
  • Mesotetrakis(3,5-di-t-butyl-4-hydroxyphenyl)porphyrin;
  • Trifluoroacetic acid (TFA);
  • Toluenesulphonic acid (TSA)

Abstract

Conductivity measurements demonstrate that in the presence of toluenesulphonic acid, 1:1 mixtures of mesotetrakis(3,5-di-t-butyl-4-hydroxyphenyl)porphyrin and its two-electron oxidation product give materials whose degree of semiconductivity is dependent on the toluenesulphonic acid concentration in the solid.