| Autor: |
NINA TODOROVIĆ, GORDANA S. UŠĆUMLIĆ, NATAŠA V. VALENTIĆ, DUŠAN Ž. MIJIN, ALEKSANDAR D. MARINKOVIĆ, ADEL S. ALIMMARI |
| Jazyk: |
angličtina |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
Journal of the Serbian Chemical Society, Vol 75, Iss 8, Pp 1019-1032 (2010) |
| Druh dokumentu: |
article |
| ISSN: |
0352-5139 |
| Popis: |
A series of some new pyridone arylazo dyes was synthesized from the corresponding diazonium salts and 3-cyano-4,6-diphenyl-2-pyridone using the classical reaction for the synthesis of the azo compounds. The structures of these dyes were confirmed by UV–Vis, FT-IR and 1H-NMR spectroscopic techniques. The solvatochromism of the dyes was evaluated with respect to visible absorption properties in various solvents. The effects of solvent dipolarity/polarizability and solvent/solute hydrogen bonding interactions were analyzed by means of the linear solvation energy relationship concept proposed by Kamlet and Taft. The 2-pyridone/2-hydroxypiridine tautomeric equilibration was found to depend on the substituents as well as on the solvents. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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