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Intramolecular and intermolecular vibrational energy relaxation of CH2I2 dissolved in supercritical fluid by K. Sekiguchi; A. Shimojima; O. Kajimoto is a Physics and Astronomy article available to read on EtoBox.
What is Intramolecular and intermolecular vibrational energy relaxation of CH2I2 dissolved in supercritical fluid about?
A pump-probe experiment was performed to examine vibrational population relaxation of diiodomethane ðCH 2 I 2 Þ molecule dissolved in supercritical CO 2 . Using an apparatus with femtosecond time resolution, we observed the contributions of intramolecular vibrational energy redistribution (IVR) and intermolecular vibrational energy transfer (VET) separately. IVR and VET rates were measured with varying solvent densities at a constant temperature. It is shown that the IVR rate is not density dependent while the VET rate increases with increasing density from 0.4 to 0:8 g cm À3 . This observation suggests that the rate of the VET process is determined by solute-solvent collisions whereas the IVR rate is not much affected by solute-solvent interaction.
Who reads Intramolecular and intermolecular vibrational energy relaxation of CH2I2 dissolved in supercritical fluid?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- K. Sekiguchi; A. Shimojima; O. Kajimoto
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0009-2614)
- Published
- 2002
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)