標題: | Ultrafast electronic and vibrational dynamics of a ruthenium porphyrin complex in intersystem crossing |
作者: | Kobayashi, Takayoshi Iwakura, Izumi Yabushita, Atsushi 電子物理學系 Department of Electrophysics |
關鍵字: | absorption change;metallo-porphyrin;intersystem crossing;pump-probe measurement;femtosecond dynamics;ruthenium porphyrin |
公開日期: | 2011 |
摘要: | Using sub-5fs visible laser pulses, ultrafast time-resolved absorption change was observed for Ru(II)(TPP)(CO) (TPP=5,10,15,20-tetraphenylporphirine) solved in chloroform. Exponential fitting of the time traces estimated decay life times of intermediates as 230 +/- 70 fs, 1150 +/- 260 fs, 2150 +/- 360 fs, and "4.8 ps for (1)Q(x(1,0))(pi,pi*), (1)Q(x(0,0))(pi,pi*), (3)(d, pi*), and (3)(pi, pi*), respectively. Real-time change of instantaneous molecular vibration frequency was studied by spectrogram analysis, which reflects gradual vibration mode change in the intersystem crossing from singlet state to triplet state. (C) 2011 Published by Elsevier B. V. |
URI: | http://hdl.handle.net/11536/15102 http://dx.doi.org/10.1016/j.phpro.2011.02.006 |
ISSN: | 1875-3892 |
DOI: | 10.1016/j.phpro.2011.02.006 |
期刊: | SELECTED PAPERS FROM 17TH INTERNATIONAL CONFERENCE ON DYNAMICAL PROCESSES IN EXCITED STATES OF SOLIDS (DPC'10) |
Volume: | 13 |
Appears in Collections: | Conferences Paper |
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