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噁嗪750激光染料分子在醇类溶剂中超快动力学研究

周立川 刘建勇 石英 赵广久 韩克利

原子与分子物理学报2007,Vol.24Issue(2):431-434,4.
原子与分子物理学报2007,Vol.24Issue(2):431-434,4.

噁嗪750激光染料分子在醇类溶剂中超快动力学研究

The ultrafast dynamics of Oxazine 750 dye in alcoholic solvents

周立川 1刘建勇 1石英 1赵广久 1韩克利1

作者信息

  • 1. 中国科学院大连化学物理研究所分子反应动力学国家重点实验室,大连,116023
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摘要

Abstract

The ultrafast dynamics of Oxazine 750 dye has been studied in the typical alcoholic solvents by using the femtosecond time-resolved stimulated emission pumping fluorescence depletion (FS TR SEP FD) technique. The faster decays on the hundreds of the femtosecond time scale and the slower decays on the order of picosecond are found. The intramolecular vibrational redistribution (IVR) and the ultrafast solvent inertial relaxation should account for the faster decay, while the slower decay is attributed to the diffusive solvent relaxation. The time constants of the slower decays are found to increase with the hydrogen-bonding energy in alcoholic solvents.

关键词

分子反应动力学/分子内振动能量再分配/溶剂化/飞秒时间分辨荧光亏蚀光谱/噁嗪750激光染料分子

Key words

molecular reaction dynamics, intramolecular vibrational redistribution, salvation, femtosecond time-resolved stimulated emission pumping fluorescence depletion technique, oxazine 750 dye

分类

化学化工

引用本文复制引用

周立川,刘建勇,石英,赵广久,韩克利..噁嗪750激光染料分子在醇类溶剂中超快动力学研究[J].原子与分子物理学报,2007,24(2):431-434,4.

基金项目

国家自然科学基金(20043020) (20043020)

原子与分子物理学报

OA北大核心CSCDCSTPCD

1000-0364

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