New unsymmetrically benzene-fused bis (tetrathiafulvalene): synthesis, characterization, electrochemical properties and electrical conductivity of their materials

Int J Mol Sci. 2014 Mar 17;15(3):4550-64. doi: 10.3390/ijms15034550.

Abstract

The synthesis of new unsymmetrically benzene-fused bis (tetrathiafulvalene) has been carried out by a cross-coupling reaction of the respective 4,5-dialkyl-1,3-dithiole-2-selenone 6-9 with 2-(4-(p-nitrophenyl)-1,3-dithiole-2-ylidene)-1,3,5,7-tetrathia-s-indacene-6-one 5 prepared by olefination of 4-(p-nitrophenyl)-1,3-dithiole-2-selenone 3 and 1,3,5,7-tetrathia-s-indacene-2,6-dione 4. The conversion of the nitro moiety 10a-d to amino 11a-d then dibenzylamine 12a-d groups respectively used reduction and alkylation methods. The electron donor ability of these new compounds has been measured by cyclic voltammetry (CV) technique. Charge transfer complexes with tetracyanoquino-dimethane (TCNQ) were prepared by chemical redox reactions. The complexes have been proven to give conducting materials.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzene / chemistry*
  • Electric Conductivity*
  • Electrochemistry / methods*
  • Heterocyclic Compounds / chemical synthesis*
  • Heterocyclic Compounds / chemistry*
  • Magnetic Resonance Spectroscopy
  • Models, Chemical
  • Molecular Structure

Substances

  • Heterocyclic Compounds
  • tetrathiafulvalene
  • Benzene