Collect. Czech. Chem. Commun. 1986, 51, 1061-1070

New organic luminophores on the basis of cyano- and dicyanopyridines

Štefan Marchalín, Jan Fähnrich, Milan Popl and Josef Kuthan

Department of Organic Chemistry and Department of Analytical Chemistry, Institute of Chemical Technology, 166 28 Prague 6


Absorption and fluorescence spectra of solutions of cyanopyridine derivatives of polyphenylene type, II-VIII, were investigated. The spectral characteristics determined are interpreted in relation to the probable conformational structure of the investigated substances in the states S0 and S1. The relationship between the Stokes shift and the solvent effect on the fluorescence spectra is discussed.