Acta Phys. -Chim. Sin. ›› 1994, Vol. 10 ›› Issue (12): 1081-1086.doi: 10.3866/PKU.WHXB19941206

• ARTICLE • Previous Articles     Next Articles

The Study of Energy Transfer Reaction form He(23S) to CH3Cl and CH3I in a Beam-gas Condition

Li Quan-Xin, Chen Cong-Xiang, Ma Xing-Xiao, Li Xue-Chu, Shen Guan-Lin   

  1. Department of Chemical Physics,University of Science and Technology of China,Hefei 230026|State Key Laboratory of Molecular Reaction Dynamics,Dalian Institute of Chemical Physics,CAS,Dalian 116023
  • Received:1993-11-25 Revised:1994-02-28 Published:1994-12-15
  • Contact: Ma Xing-Xiao

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Abstract:

The energy transfer reactios from He(23S) to CH3Cl and CH3I have been studied in a beam-gas condition by observing the emission of the excited state products. The formation rate constants of CH(A), CH(B) and CH(C) produced by He(23S) with CH3Cl or CH3I were determined. The nascent rovibrational distrbution of CH(A2△, v'= 0 - 2) and CH(B2 ∑-,V' = 0) from above reactions were obtained by a computer simulation of CH(A - X, B - X) emission. The experimental results showed that the major of the reaction available energies is deposited into the translation energies of the products. The mechanism of the energy transfer reactions from He(23S) to CH3Cl and CH3I were also discussed.

Key words: Beam-gas condition, The formation rate constants, Available energy, Rovibrational distribution