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A Straightforward Electroactive π-Extended Tetrathiafulvalene (exTTF) Building Block

  • Autori: Molina Ontoria, A.; Garcia, R.; Gouloumis, A.; Giacalone, F.; Torres, M.; Martin, N.
  • Anno di pubblicazione: 2012
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • Parole Chiave: Materials;Fused-ring systems; Conjugation; Donor-acceptor systems; Pi interactions; Olefination
  • OA Link:


The synthesis and X-ray structure of a new and readily available exTTF derivative (6) bearing a methyltriphenylphosphonium bromide moiety as a new building block for the construction of electroactive molecules is reported. The phosphonium salt 6, which was prepared in one step from 2-hydroxymethyl-exTTF as a stable yellow solid in 84 % yield, efficiently undergoes Wittig olefination reactions with a variety of aldehydes to predominantly form the E isomer. Electronic spectra and cyclic voltammetry of the novel compounds reveal the electronic communication between the electroactive units