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

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

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
Volume310
Issue number1-2
DOIs
Publication statusPublished - 1999 Aug 27

Fingerprint

Proton transfer
Excited states
Gases
vapor phases
protons
excitation
Energy barriers
Ionization
decay
Spectroscopy
ionization
1'-hydroxy-2'-acetonaphthone
energy
spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Ultrafast dynamics of gas-phase excited-state intramolecular proton transfer in 1-hydroxy-2-acetonaphthone. / Lu, Chengii; Hsieh, Re Ming R.; Lee, I. Ren; Cheng, Po Yuan.

In: Chemical Physics Letters, Vol. 310, No. 1-2, 27.08.1999, p. 103-110.

Research output: Contribution to journalArticle

Lu, Chengii ; Hsieh, Re Ming R. ; Lee, I. Ren ; Cheng, Po Yuan. / Ultrafast dynamics of gas-phase excited-state intramolecular proton transfer in 1-hydroxy-2-acetonaphthone. In: Chemical Physics Letters. 1999 ; Vol. 310, No. 1-2. pp. 103-110.
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