Photophysical properties of 2’-hydroxychalcones of 2-cinnamoyl-4-nitro-1-naphthol series
2’-Hydroxychalcones of 2-cinnamoyl-4-nitro-1-naphthol series were obtained by the condensation between 2-acetyl- 4-nitro-1-naphthol and benzaldehydes. The presence of the 4-positioned nitro group in the 1-hydroxy-2-naphthyl fragment contributes to the excited state intramolecular proton transfer (ES...
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| Hauptverfasser: | , |
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| Format: | Статья |
| Sprache: | English |
| Veröffentlicht: |
Elsevier Ltd
2024
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| Schlagworte: | |
| Online Zugang: | https://dspace.ncfu.ru/handle/123456789/29230 |
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| Zusammenfassung: | 2’-Hydroxychalcones of 2-cinnamoyl-4-nitro-1-naphthol series were obtained by the condensation between 2-acetyl- 4-nitro-1-naphthol and benzaldehydes. The presence of the 4-positioned nitro group in the 1-hydroxy-2-naphthyl fragment contributes to the excited state intramolecular proton transfer (ESIPT) fluorescence of these 2’-hydroxy- chalcones in the solid state. Compound with dimethyl- amino substituent, 2-(4-dimethylaminocinnamoyl)-4-nitro- 1-naphthol, also demonstrates ESIPT in solution. |
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