The effect of adsorbed noble gas atoms on vibrational relaxation of hydroxyl group in zeolite

T. Fujino, M. Furuki, M. Kashitani, K. Onda, J. Kubota, J. N. Kondo, A. Wada, K. Domen, C. Hirose, F. Wakabayashi, M. Ishida, F. Goto, S. S. Kano

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Abstract

By means of tunable infrared pump-probe experiment, vibrational relaxation rates (v = 1→0) of OH stretching mode of Brønsted acidic hydroxyl groups in a mordenite zeolite, which were interacting with noble gases (He, Ar, Kr, or Xe), were measured. The population lifetime, T1, decreased with the increase of the interaction with noble gases, e.g., 170 ps and 58 ps for isolated hydroxyl groups and ones interacting with Xe, respectively. Using a simple linear chain model, the mechanism for the enhancement of the relaxation rate was studied.

Original languageEnglish
Pages (from-to)279-288
Number of pages10
JournalJournal of Chemical Physics
Volume105
Issue number1
DOIs
Publication statusPublished - Jan 1 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

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    Fujino, T., Furuki, M., Kashitani, M., Onda, K., Kubota, J., Kondo, J. N., Wada, A., Domen, K., Hirose, C., Wakabayashi, F., Ishida, M., Goto, F., & Kano, S. S. (1996). The effect of adsorbed noble gas atoms on vibrational relaxation of hydroxyl group in zeolite. Journal of Chemical Physics, 105(1), 279-288. https://doi.org/10.1063/1.471873