Synthesis and Photophysical Characterization of Novel pi-Conjugated Vinyl Sulfides

BASSACO, M. M.; MONCALVES, M.; RINALDI, F.; KAUFMAN, T. S.; SILVEIRA, C. C.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

ELSEVIER SCIENCE SA

Lugar: Amsterdam; Año: 2014 vol. 290 p. 1 - 10

1010-6030

               The synthesis and photophysical properties of a series of p-conjugated vinyl sulfides are described. These compounds exhibited their absorption maxima in the range 350-366 nm, while the emission spectra displayed peaks in the zone of 421-441 nm; both of them were influenced, although in different degrees, by the extent of the conjugated system. Red-shifted absorption and emission were observed when the p-conjugation was extended, clearly indicating that the sulfur atom participates as a bridge within these highly conjugated structures. Therefore, this preliminary investigation suggests that vinyl sulfide-based p-conjugated materials are promising compounds for the development of novel and efficient organic emitters.