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

Kiba, Takayuki; Sato, Shin-ichiro; Akimoto, Seiji et al.

Journal of Photochemistry and Photobiology A: Chemistry, 2006, 178(2-3), 201-207

Permalink : https://hdl.handle.net/2115/8456

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アクセス権	open access
URI	https://hdl.handle.net/2115/8456
タイトル	Solvent-assisted intramolecular vibrational energy redistribution of S1 perylene in ketone solvents
著者	Kiba, Takayuki ; Sato, Shin-ichiro ; Akimoto, Seiji ; Kasajima, Tatsuya ; Yamazaki, Iwao
著者名 Kiba, Takayuki
著者名 Sato, Shin-ichiro
著者名 Akimoto, Seiji
著者名 Kasajima, Tatsuya
著者名 Yamazaki, Iwao
言語	英語
発行日	2006-03-20
出版者	Elsevier
収録物名	Journal of Photochemistry and Photobiology A: Chemistry
巻(号)	178(2-3)
ページ	201-207
抄録	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.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	1010-6030
関連情報	URI http://www.sciencedirect.com/science/journal/10106030
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.jphotochem.2005.09.032