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Solvent-assisted intramolecular vibrational energy redistribution of S1 perylene in ketone solvents

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Title: Solvent-assisted intramolecular vibrational energy redistribution of S1 perylene in ketone solvents
Authors: Kiba, Takayuki Browse this author
Sato, Shin-ichiro Browse this author
Akimoto, Seiji Browse this author
Kasajima, Tatsuya Browse this author
Yamazaki, Iwao Browse this author
Issue Date: 20-Mar-2006
Publisher: Elsevier
Journal Title: Journal of Photochemistry and Photobiology A: Chemistry
Volume: 178
Issue: 2-3
Start Page: 201
End Page: 207
Publisher DOI: 10.1016/j.jphotochem.2005.09.032
Abstract: We investigated vibrational energy relaxations of S1 perylene at an excess energy of ca. 2800 cm-1 in several ketone solvents by femtosecond time-resolved fluorescence measurements. Temporal evolution of fluorescence emissions occurs on the following distinct timescales: 70 - 330 fs, 0.6 - 1.1 ps and 1.8 - 4.9 ps. The latter two was assigned to the intramolecular vibrational redistribution (IVR), and to the solvent-assisted IVR (SA-IVR), respectively. In SA-IVR, intramolecular vibrational couplings are affected by elastic or quasi-elastic interactions between solute and solvents. Solvent dependence of the SA-IVR rates can be explained qualitatively by the tier V-V coupling mechanism.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佐藤 信一郎

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