|
|||||
|
|
2-(benzimidazol-2-yl)-3-hydroxychromone derivatives: spectroscopic properties and a possibile alternative intramolecular proton phototransfer |
|
| Authors: | D. A. Svechkarev G. V. Karpushina L. L. Lukatskaya A. O. Doroshenko |
| Affiliation: | (1) Institute for Chemistry at Kharkov V.N. Karazin National University, 61077 Kharkov, Ukraine |
| Abstract: | Three 2-(benzimidazol-2-yl)-3-hydroxychromone derivatives were synthesized. Their spectroscopic and fluorescent properties, due to excited state intramolecular proton transfer (ESIPT) from OH to carbonyl, were studied. Theoretical possibility of an alternative intramolecular H-bonding and experimental evidence for such behavior are discussed.  |
| Keywords: | 3-hydroxychromones Benzimidazole Intramolecular hydrogen bonding Excited state intramolecular proton transfer reaction (ESIPT) Absorption and fluorescence spectra |
| 本文献已被 SpringerLink 等数据库收录！ | |