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化学学报
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化学学报 ›› 1996, Vol. 54 ›› Issue (5): 422-426. 上一篇    下一篇

研究论文

用交叉分子束研究O(^3p)与CF2=CFCl, CF2=CFBr, CF2=CH2的反应

史济良;李方琳;周士康;詹明生;邱元武   

  1. 中国科学院上海有机化学研究所;中国科学院安徽光学精密机械研究所激光光谱;同济大学物理系
  • 发布日期:1996-05-15

A molecular beam study of the reactions of oxygen atoms with CF2=CFCl, CF=CFBr and CF2=CH2

SHI JILIANG;LI FANGLIN;ZHOU SHIKANG;ZHAN MINGSHENG;QIU YUANWU   

  • Published:1996-05-15

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本文报道在交叉分子束装置中, 研究氧原子和CF2=CFCl, CF2=CFBr,CF2=CH2的反应。在O(^3p)和CF2=CFBr(或CF2=CFBr)反应中, 首次观察到反应生成的CF2(^3B1)的发射光谱, 而在O与CF2=CH2反应中, 用激光诱导荧光方法检测到CFH卡宾, 确定了在此反应中CFH卡宾的生成, 这一结果未见文献报道。并根据这些结果, 分析和讨论了在这些反应中, 生成CF2(^3B1)和CHF卡宾的机理。

关键词: 反应机理, 氧原子, 分子束, 氯乙烷, 化学发光, 发射光谱, 氟乙烷, 溴乙烷

The reactions of oxygen atoms with CF2=CFCl, CF2=CFBr and CF2=CH2 have been investigated by crossing molecular beam apparatus. The paper reported that the emission spectrum of CF2(^3B1) carbene produced by the reaction of O(^3p)+CF2=CFCl(or CF2=CFBr) has been observed and the CFH carbene produced by the reaction of O(^3p)+CF2=CH2 has been identified by laser induced fluorescence spectrum, respectively for the first time. Otherwise, these reactive mechanisms were analyzed and discussed simultaneously in this paper.

Key words: REACTION MECHANISM, OXYGEN ATOM, MOLECULAR BEAM, CHLOROETHANE, CHEMILUMINESSENCE, EMISSION SPECTRA, ETHYL BROMIDE (=BROMOETHANE)

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