Ultrafast dynamics of gas-phase excited-state intramolecular proton transfer in 1-hydroxy-2-acetonaphthone

Chengii Lu*, Re Ming R. Hsieh, I. Ren Lee, Po Yuan Cheng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)


The excited-state dynamics of 1-hydroxy-2-acetonaphthone (HAN) was studied in the gas phase using femtosecond time-resolved multiphoton ionization spectroscopy. Following femtosecond excitation to its S1 state, HAN was found to exhibit a biexponential decay behavior which can be consistently interpreted in terms of rapid excited-state intramolecular proton transfer (ESIPT) followed by other slower decay channels. The results revealed that ESIPT in HAN (S1) occurs in ~60-85 ps in the energy range studied and suggested the existence of an energy barrier to tautomerization.

Original languageEnglish
Pages (from-to)103-110
Number of pages8
JournalChemical Physics Letters
Issue number1-2
Publication statusPublished - 1999 Aug 27
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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