| CO(υ)高振动激发态向C2H2的振动传能研究 |
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| 引用本文： | 王宝山,郭敬忠,顾月姝,毛文涛,孔繁敖.CO(υ)高振动激发态向C2H2的振动传能研究[J].物理化学学报,1998,14(4):327-331. |
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| 作者姓名： | 王宝山 郭敬忠 顾月姝 毛文涛 孔繁敖 |
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| 作者单位： | Department of Chemistry,Shandong University,Jinnan 250100,State Key Laboratory of Molectlar Rection Dynamics,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080 |
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| 摘 要： | 用时间分辨富里叶红外发射谱研究了高振动激发态ＣＯ向Ｃ２Ｈ２的传能，得到了ＣＯ（ｖ＝１－３）各振动态布居及其随时间的变化。利用微分法解出弛豫微分方程组，获得ＣＯ（ｖ＝１－３）向Ｃ２Ｈ２的传能速率常数分别为：２．０±０．１，６．０±０．２和９．４±０．８（１０＾－１３ｃｍ＾３·ｍｏｌｅｃｕｌｅ＾－１·ｓ＾－１）。传能速率随着振动量子数的增加而迅速增加。ＣＯ的振动能应向Ｃ２Ｈ２的对称伸缩模ｖ２近共振Ｖ－
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| 关 键 词： | 时间分辨红外光谱 高振动激发态 V-V传能 |
| 收稿时间： | 1997-07-07 |
| 修稿时间： | 1997-11-03 |
Vibrational Energy Transfer from Highly Excited State CO to C2H2 |
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| Wang Bao-Shan,Guo Jing-Zhong,Gu Yue-Shu,Mao Wen-Tao,Kong Fan-Ao.Vibrational Energy Transfer from Highly Excited State CO to C2H2[J].Acta Physico-Chimica Sinica,1998,14(4):327-331. |
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| Authors: | Wang Bao-Shan Guo Jing-Zhong Gu Yue-Shu Mao Wen-Tao Kong Fan-Ao |
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| Institution: | Department of Chemistry,Shandong University,Jinnan 250100|State Key Laboratory of Molectlar Rection Dynamics,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080 |
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| Abstract: | The energy transfer process of highly vibrational states of CO with C2H2 has been studied by the Time -resolved Fourier Transform Infrared Emission Spectroscopy. The vibrational population of CO(v=1-3)were obtained by the simulations of the IR emission spectra. Differentiation method was used to calculate the quenching rate constants of CO(v=1-3)which are:2.0±0.1，6.0±0.2and 9.4±0.8(10-13cm3.molecule-1.s-1), respectively. The most possible energy transfer channel is the transfer of CO(v)to C2H2(v2). Dimer complexes may be formed in the collisional process. The equilibrium structures and lifetime of the complexes were estimated by ab initio computation and V-V/R theory. |
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| Keywords: | Time-resolved IR spectra Highly vibrational excited state V-V energy transfer |
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