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Syntheses of azulen-1-yl-benzothiazol-2-yl diazenes

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Alexandru C. Razus, Liviu Birzan, Nina Mirela Surugiu, Andreea Cristina Corbu and Filip Chiraleu

Editorial: Dyes and Pigments, 74(1), p.26-33, 2007.


Azulen-1-yl-benzothiazol-2-yl diazenes substituted at thiazole and/or at azulene moiety have been prepared by diazotization of the corresponding benzothiazol-2-ylamines in inorganic acids mixtures or dichloroacetic acid followed by diazonium salts coupling with azulenes. The nitrosyl sulfate was also used for diazonium salts synthesis. The systematic substitution of pattern structure enabled to study the interdependence between the polarity of different obtained chromophores and their physical characteristics as electronic and NMR spectra. Because the NLO response of chromophores is related to the compound solvatochromism this diazenes property was also took into account.

Cuvinte cheie: Azulena, diazene, azo, benzotiazol, coloranti // Azulene, Diazene, Azo, Benzothiazole, Dyes