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化学学报
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化学学报 ›› 1993, Vol. 51 ›› Issue (9): 910-914. 上一篇    下一篇

研究论文

氟原子与乙腈、丙腈反应化学发光研究

储焰南;周士康;杨新;刘军;宋芳青;史济良   

  1. 中国科学院安徽光学精密机械研究所;激光光谱学开放实验室;中国科学院上海有机化学研究所
  • 发布日期:1993-09-15

Study on chemiluminescence from reactions f atom with CH~3CN and CH~3CH~2CN

CHU YANNAN;ZHOU SHIKANG;YANG XIN;LIU JUN;SONG FANGQING;SHI JILIANG   

  • Published:1993-09-15

PDF

363

被引次数

2

我们研究了CF~4/Ar混合气体微波放电产生的基态F(^2P)原子与CH~3CN,CH~3CH~2CN发生的反应,观测了不同压力下两个反应的可见区(400～900nm)化学发光.获得了产物碎片HF≠(X),CN^*(A),CH^*9(A,B)的发射光谱.并计算了CN(A→X)跃迁的Franck-condon因子以及CN(A) 态的振动布居.机理分析认为CN^*(A)是由次级反应产生的激发态分子(如CH~2CNF^*)离解而形成.

关键词: 氟, 激发态, 化学发光反应, 电子跃迁, 基态, 气相反应, 乙腈, 丙腈

The chemiluminescence in the visible region (400~900 nm) was measured from the reaction of F(2P) atoms with CH3CN and CH3CH2ON under low and high pressure conditions. Emissions were observed from vibrationally excited HF(X) and from electronically excited CN(A) and CH(A,B). The Franck-Condon factors of CN(A甔) transitions was calculated, and the relative vibrational population of CN(A) was obtained. The formation mechanism of CN(A2II) was suggested by the dissociation of the activated mol. like (CH2CNF).

Key words: FLUORINE, EXCITED STATE, CHEMILUMINESCENCE REACTION, ELECTRON TRANSITION, GROUND STATE, GAS PHASE REACTION, ACETONITRILE, PROPANENITRILE

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