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| 态—态振动能量跃迁的时间分辨研究(Ⅰ)——碘分子的自碰撞过程 | |
| 引用本文： | 向天翔,孙胜,龚顺生,王嘉铭. 态—态振动能量跃迁的时间分辨研究(Ⅰ)——碘分子的自碰撞过程[J]. 物理学报, 1990, 39(10): 1547-1554 |
| 作者姓名： | 向天翔 孙胜 龚顺生 王嘉铭 |
| 作者单位： | (1)南京大学化学系,南京,210008; (2)中国科学院武汉物理研究所波谱与原子分子物理开放研究实验室,武汉,430071 |
| 基金项目： | 中国科学院武汉物理研究所波谱与原子分子物理开放研究实验室资助项目;国家科学技术委员会的部分资助 |
| 摘 要： | 本文介绍了采用可调脉冲激光技术和时间分辨色散荧光方法研究态-态碰撞动力学的实验过程。在实验中直接观测了处于电子振动激发态B3Πou+(v＇=19)的碘分子在自碰撞事件中朝相邻振动态跃迁的衰变过程,得到态—态振动跃迁速率常数,kv(19→18)=(2.21±0.33)×10-11cm3s-1mol-1和kv(19关键词： |
| 关 键 词： | 态－态 碰撞 振动 跃迁 时间分辨 |
| 收稿时间： | 1989-12-16 |
TIME RESOLVED STUDIES OF STATE TO STATE VIBRATIONAL ENERGY TRANSFER (Ⅰ)——SELF-COLLISION PROCESSES OF IDIONE MOLECULES |
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| XIANG TIAN-XIANG,SUN SHENG,GONG SHUN-SHENG and WANG JIA-MIN. TIME RESOLVED STUDIES OF STATE TO STATE VIBRATIONAL ENERGY TRANSFER (Ⅰ)——SELF-COLLISION PROCESSES OF IDIONE MOLECULES[J]. Acta Physica Sinica, 1990, 39(10): 1547-1554 | |
| Authors: | XIANG TIAN-XIANG SUN SHENG GONG SHUN-SHENG WANG JIA-MIN |
| Abstract: | This paper presents an experimental procedure to study state-to-state collisional dynamics by using tunable and pulsed laser techniques and timeresolved and dispersed fluorescence method. The decay processes of electronically and vibrationally excited iodine, B3Πou+(v＇=19), to the adjacent vibrational states in self-collisional events have been directly observed in experiments. The rate constants for the state-to-state vibrational transfer obtained are, kv(19→18) = (2.21±0.33)×10-11cm3s-1mol-1 and kv(19→20) = (1.44±0.20)×10-11cm3s-1mol-1. These results are in satisfactory agreement with the principle of detailed balance. In addition, the collision-free lifetimes and the radiationless quenching rate constants in B(v＇= 19) were also obtained in the experiments. |
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