• 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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