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Colored Benzo-crown ethers substituted with (azulene-1-yl) azo chromophores. Synthesis and properties

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

Autori: Alexandru C. Razus, Liviu Birzan, Victorita Tecuceanu, Mihaela Cristea, Anamaria Hanganu

Editorial: Revue Roumaine de Chimie, 57(11), p.985-993, 2012.

Rezumat:

Colored Benzo- and dibenzo-crown ethers with (azulene-1-yl) azo chromophore(s) at benzo ring(s) were synthesized in good yields starting from the amines of the benzo- and dibenzo-crown ethers which were diazotized and coupled with azulenes. The obtained crown ethers were characterized and several properties of the generated new dyes were investigated (electronic and NMR-spectra, as well as pKa values, the lipophilicity and the coordination with metal cations).

Cuvinte cheie: azulene, crown ethers, azo, diazene