• Pronounced Electrochemical Amphotericity of a Fused Donor–Acceptor Compound: A Planar Merge of TTF with a TCNQ-Type Bithienoquinoxaline
    X. Guégano, A.L. Kanibolotsky, C. Blum, S.F.L. Mertens, S.-X. Liu, A. Neels, H. Hagemann, P.J. Skabara, S. Leutwyler, T. Wandlowski, A. Hauser and S. Decurtins
    Chemistry - A European Journal, 15 (1) (2009), p63-66
    DOI:10.1002/chem.200802011 | unige:3555 | Abstract | Article HTML | Article PDF
Electronic absorption spectrum of 1 in DMF solution at room temperature, together with the calculated oscillator strengths.
  • Preparation and characterization of 3-(4,5-ethylenedithio-1,3-dithiol-2-ylidene)naphthopyranone: a luminescent redox-active donor–acceptor compound
    S. Dolder, S.-X. Liu, X. Guégano, M. Atanasov, C.A. Daul, C. Leiggener, A. Hauser, A. Neels and S. Decurtins
    Tetrahedron, 62 (48) (2006), p11106-11111
    DOI:10.1016/j.tet.2006.09.032 | unige:3295 | Abstract | Article HTML | Article PDF
A new 1,3-dithiol-2-ylidene substituted naphthopyranone 2 has been synthesized and characterized. UV–vis spectroscopic and cyclic voltammetry results, interpreted on the basis of density functional theory, show that 2 displays an intramolecular charge-transfer transition and acts like a donor–acceptor (D–A) system. Furthermore, a weak fluorescence originating from the excited charge-transfer state is observed.



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