The Vibrational Distribution and Vibrational Relaxation Rate of SO(A, v') in The Energy Transfer Reaction of Metastable Rare Gas Atoms With SOCl₂

Excited radical SO（A） was produced in the energy transfer reaction of metasable rare gas atoms (He（2³S）, Ne（³P_0.2）, Ar（³P_0.2） with SOCl₂ by using discharge-flowing afterglow technique. The relative vibrational distribution and vibrational relaxation rate constants of the radical SO（A,v’） were measured and the mechanism of energy transfer reaction was discussed. Addtionally, the formation rate constants of SO（A） for the reaction He^≠+SOCl₂ was obtained.