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Pressure Effect on Solvation Dynamics and Rotational Dynamics in Solution |
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| Authors: | Kimihiko Hara Naoki Ito Hiroaki Kuwabara Okitsugu Kajimoto |
| Affiliation: | 1. Graduate School of Science , Kyoto University , Sakyo-ku, Kyoto, 606-8502, Japan Fax: E-mail: hara@kuchem.kyoto-u.ac.jp;2. Graduate School of Science , Kyoto University , Sakyo-ku, Kyoto, 606-8502, Japan |
| Abstract: | Effects of pressure on solvation dynamics and rotational dynamics in solution were studied by picosecond time-dependent fluorescence Stokes shift (TDFSS) and picosecond time-dependent fluorescence rotational depolarization (TDFRD). The fluorescence lifetimes of solute probes, coumarin 153 and p -terphenyl, in various solvents were measured at high pressures by time-correlated single photon counting (TCSPC) technique with time resolution of 20-30 ps. |
| Keywords: | Solvation Dynamics Rotational Dynamics Time-dependent Fluorescence Stokes Shift (TDFSS) Time-dependent Fluorescence Rotational Depolarization (TDFRD) Time-correlated Single Photon Counting (TCSPC) |