Excited-State Intramolecular Proton Transfer of the Natural Product Quercetin.
作者： Ron Simkovitch , Dan Huppert
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摘要: Intramolecular proton-transfer dynamics in the lowest excited state (ESIHT) were studied natural product quercetin. We found that all seven solvents used this study, ESIHT rate is ultrafast. estimate about 70 fs or less. deuterated protic solvents, such as methanol-d ethanol-d, slower and time constant 110 fs. The tautomeric form fluorescence quantum yield of quercetin very low, order normal form.
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