Laser-induced fluorescence of jet-cooled chlorotoluene molecules

H. Kojima, T. Suzuki, T. Ichimura, A. Fujii, T. Ebata, N. Mikami

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14 Citations (Scopus)


The laser-induced fluorescence spectra of jet-cooled o-, m- and p-chlorotioluene molecules in the S1 state are reported. The fluorescence excitation spectra of these molecules exhibit a variety of vibrational modes in the S1 state. The spectra of m- and p-chlorotoluene show low-frequency bands up to 200 cm-1 above the S1 origin, which are assigned to internal rotational modes of the methyl group. From 300 cm-1 up to approximately 1500 cm-1, sharp vibrational bands appear; these are assigned by measuring the dispersed fluorescence spectra on excitation of each vibrational band. The vibrational energies of the CCl symmetric stretching mode for o-, m- and p-chlorotoluene molecules are 341 cm-1, 378 cm-1 and 360 cm-1 in the S1 state respectively. Other prominent normal modes are also assigned.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalJournal of Photochemistry and Photobiology, A: Chemistry
Issue number1-2
Publication statusPublished - 1995 Dec 6


  • Excitation spectra
  • Jet-cooled chlorotoluene
  • Laser-induced fluorescence

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)


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