Open Chemistry · 2008 · 32 citations · 20 references
Natural SciencesChemistrySpectroscopyFluorescence SpectroscopyMolecular SpectroscopyPhotochemistryChromophore PhotochemistryChromophore PhotophysicsExcited-state Proton TransferHydrogen Bonding EffectsIntramolecular Hydrogen BondingMolecular ChromophoresPhotophysical Mechanisms
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.
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