Acta Phys. -Chim. Sin. ›› 1992, Vol. 8 ›› Issue (02): 274-278.doi: 10.3866/PKU.WHXB19920227

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Chemiluminescence and Dynamics of the Reaction F(2P)+CH2Br2

Zhan Ming-Sheng; Zhou Shi-Kang; Chu Yan-Nan; Song Fang-Qing; Yang Xin; Li Fang-Lin   

  1. Laser Spectrosocpy Laboratory, Anhui Institute of Optics and Fine Mechanics, Academia Sinica, Hefei 230031
  • Received:1990-08-15 Revised:1991-11-12 Published:1992-04-15
  • Contact: Zhan Ming-Sheng

Abstract: This paper reported an observation of the chemiluminescence in the 400~900 nm spectral region produced by the crossed molecular beam reaction of F(~2P) with CH_2Br_2, as well as the reaction mechanism. Under single collision condition, only vibrationally excited HF~≠(X,V) (V≤3) can be observed. In the case of multicollision, in addition to V≤3, HF~≠(X,V) with V>3 and electronically excited Br_2~*(B), BrF~*(B) have been detected. The equilibrium rotational temperature for HF(3,0) band is 320 K, and the relative population ratio of different V levels of HF is N_3:N_4:N_5=0.69:1.00:0.12.

Key words: Crossed molecular beam, Chemiluminescence, Dibromomethane