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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...
The new donor ligand 4,5-bis(2-pyrazylmethylsulfanyl)-4′,5′-bis(cyanoethylthio)tetrathiafulvalene (1) has been synthesized and characterized. The electrochemical properties of the ligand have been investigated by cyclic voltammetry (CV) and 1 shows two reversible oxidation processes at E11/2=0.69VandE21/2=0.97V (in DCM, versus Ag/AgCl). The charge-transfer complex (1 2 ) 2+ [(I ...
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