Femtosecond vibrational study for exploring the transition-state structure
| Project/Area Number |
22245005
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
TAKEUCHI Satoshi 独立行政法人理化学研究所, 田原分子分光研究室, 専任研究員 (50280582)
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| Research Collaborator |
ZHENGRONG Wei 独立行政法人理化学研究所, 田原分子分光研究室, 特別研究員
KURAMOCHI Hikaru 独立行政法人理化学研究所, 田原分子分光研究室, 博士課程学生
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥49,140,000 (Direct Cost: ¥37,800,000、Indirect Cost: ¥11,340,000)
Fiscal Year 2012: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2011: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2010: ¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
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| Keywords | 時間分解分光 / フェムト秒パルス / 超高速反応 / 構造ダイナミクス / 誘導ラマン / 遷移状態 / 分子振動 / ポテンシャル曲面 / フェムト秒分光 / 核波束運動 / 光受容タンパク質 / ポンプ・ダンプ・プローブ / パラメトリック過程 |
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| Research Abstract |
Using pump-dump-probe spectroscopy, we studied the dynamics of reacting molecules near the conical intersection region that plays crucial roles in ultrafast reactions. The data clearly showed that the dump efficiency rises up more slowly for dumping with longer wavelengths, revealing the wavepacket migration toward the conical intersection region along the reaction coordinate. We also realized uv-resonance femtosecond stimulated Raman spectroscopy with tunable uv pulses, and using this, we revealed that the chromophore of photoactive yellow protein undergoes a rapid in-plane deformation within 1 ps after photoexcitation.
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Report
(4 results)
Research Products
(76 results)
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[Book] Proceedings of the 18th International Conference on Ultrafast Phenomena, EPJ Web of Conferences 41, 08002 (2013), M. Chergui, A. Taylor, S. Cundiff, R. de Vivie-Riedle, K. Yamanouchi ed., EDP Science2013
Author(s)
S. Takeuchi, H. Kuramochi, T. Tahara
Publisher
Ultraviolet resonance femtosecond stimulated Raman study of the initial events in photoreceptor chromophore
Related Report
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