Intramolecular vibrational redistribution of CH2I2 dissolved in supercritical Xe

K. Sekiguchi, Atsushi Shimojima, O. Kajimoto

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Intramolecular vibrational energy redistribution (IVR) of CH2I2 in supercritical Xe has been studied. The first overtone of the C-H stretching mode was excited with a near infrared laser pulse and the transient UV absorption near 390 nm was monitored. Signals showed a rise and decay profile, which gave the IVR and VET (intermolecular vibrational energy transfer) rates, respectively. Solvent density dependence of each rate was obtained by tuning the pressure at a constant temperature. The IVR rate in supercritical Xe increased with increasing solvent density and asymptotically reached a limiting value. This result suggests that the IVR process of CH2I2 in condensed phase is a solvent-assisted process.

Original languageEnglish
Pages (from-to)303-308
Number of pages6
JournalChemical Physics Letters
Volume370
Issue number3-4
DOIs
Publication statusPublished - 2003 Mar 14
Externally publishedYes

Fingerprint

Infrared lasers
Laser modes
Energy transfer
Stretching
energy
Laser pulses
Tuning
infrared lasers
energy transfer
tuning
harmonics
decay
profiles
pulses
Temperature
temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Intramolecular vibrational redistribution of CH2I2 dissolved in supercritical Xe. / Sekiguchi, K.; Shimojima, Atsushi; Kajimoto, O.

In: Chemical Physics Letters, Vol. 370, No. 3-4, 14.03.2003, p. 303-308.

Research output: Contribution to journalArticle

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