| Autor: |
Matović, Luka, Lađarević, Jelena, Vitnik, Željko, Vitnik, Vesna, Mijin, Dušan |
| Jazyk: |
English<br />French |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Comptes Rendus. Chimie, Vol 24, Iss 2, Pp 267-280 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1878-1543 |
| DOI: |
10.5802/crchim.85 |
| Popis: |
Six donor–${\pi }$–acceptor azo dyes, with altered donor- (p-hydroxyphenyl- and naphthalene-2-ol) and carboxylic based acceptor groups, were subjected to detailed solvatochromic and tautomeric investigation in different environments by experimental and theoretical approaches. Naphthalene-2-ol compounds exhibit azo–hydrazone tautomerism in all solvents, wherein benzoic- and cinnamic acid-based compounds appear in solutions as a complex system of neutral forms and corresponding carboxylates. p-Hydroxyphenyl based compounds adopt the azo form in all investigated solvents. A special focus was placed on the definition of the anionic species and the extent of the deprotonation in different alkaline solutions. Excellent agreement between theoretical and experimental data is attained. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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