Acta Phys. -Chim. Sin. ›› 1994, Vol. 10 ›› Issue (10): 941-946.doi: 10.3866/PKU.WHXB19941016

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The Excitation Functions of the Reactions of Alkaline Earth Metal with Polyatomic Halides

Xu Da-Li, Chen Wei, He Guo-Zhong, Lou Nan-Quan   

  1. State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics,Dalian 116023
  • Received:1993-06-28 Revised:1993-11-24 Published:1994-10-15
  • Contact: Xu Da-Li


In a beam-beam scattering experiment the excitation functions of the reactions of alkaline earth metals with some polyatomic halides (M+RX- MX+R) have been studied with Laser Induced Fluorescence (LIF) technique. At the variation range of the collision energies, the excitation functions can be taken as
σR(ET)∝ ET(1 + QMAX/ET)n
where ET and QMAX are the collision energy and the reaction exoergic energy, respectively, and n is a parameter which is correlative to the number of the active vibrational modes in radical R during the reaction processes. Tab1e 2 gives the parameters of the excitation functions for these reactions.

Key words: Molecular beams, Laser induced fluorescence, Excitation function