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Solvent-assisted intramolecular vibrational energy redistribution of S1 perylene in ketone solvents
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. |
Relation: | http://www.sciencedirect.com/science/journal/10106030 |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/8456 |
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)
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Submitter: 佐藤 信一郎
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