物理化学学报 >> 1996, Vol. 12 >> Issue (11): 1011-1014.doi: 10.3866/PKU.WHXB19961111

研究简报 上一篇    下一篇

亚稳态He(23S)、Ar(3P0.2)原子与C2H3分子传能反应

胡义华,王小涓,詹业宏,储焰南,李书涛,曹德兆,郭敬忠,刘传朴,顾月姝   

  1. 广东工业大学数理系，广州 510090|中国科学院安徽光学机械研究所激光光谱学开放实验室，合肥 230031|山东大学化学系，济南 250100
  • 收稿日期:1996-04-15 修回日期:1996-06-25 发布日期:1996-11-15
  • 通讯作者: 胡义华

The Energy Transfer Reaction of Metastable He(23S)、Ar(3P0.2) Atoms with C2H3CN Molecule

Hu Yi-Hua,Wang Xiao-Juan,Zhan Ye-Hong,Chu Yan-Nan,Li Shu-Tao,Cao De-Zhao,Guo Jing-Zhong,Liu Chuan-Pu,Gu Yue-Shu   

  1. Department of Math Phys,Guangdong University of Technology,Guangzhou 510090|Laser Spectroscopy Laboratory,Anhui Institute of Optics Fine Mechanics,Academia Sincia,Hefei 230031|Department of Chemistry,Shandong University,Jinan 250100
  • Received:1996-04-15 Revised:1996-06-25 Published:1996-11-15
  • Contact: Hu Yi-Hua

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关键词: 能量转移反应, 化学发光

Abstract:

Excited radicals CN(A, B), CH(A), H(n=3,4,5) were produced in the energy transfer reaction of metastable He(23S)、 Ar(3P0,2) atoms with C2H3CN molecule by using discharge-flowing afterglow technique. The emission spectra of products were analysed, the results showed that vibrational populations of CN (B, v) were irregular in He(23S)+C2H3CN reaction and the mechanism was that two energy levels of CN(B, v=0,14) were coupled by the other two of CN(A, v=10,30). The relative vibrational population of CN (A, B, v), except the energy level of CN (B, v=14), decreased with the increase quantum number v of vibration which was the statistical population. The nascent rotational temperature Tr of the product CH (A, v=0) was 2600K.The formation mechanism of excited products was suggested as
He(23S)+C2H3CN)→CN(A,B)+CH+CH2
                 →CN(A)+CH2+CN
                 →H(n=1,2,3)+C2H2CN
Ar(3P0,2)+C2H3CN→CN(A,B)+C2H3

Key words: Energy transfer reaction, Chemiluminescene