Formation of PO（A²Σ, B²Σ） in the Reactions of the Helium and Neon Afterglows with POCl₃

Energy transfer reaction of He（2³s） or Ne（³ρ_0,2） with POCl₃ has been studied by observing PO（A-X） and PO（B-X） emission in the flowing afterglow apparatus. The effects of SF₆ addition to the He and Ne afterglows on the intensity of emission indicated that the formation of PO（A, B） in the flowing afterglow proceeds through the primary reaction of He（2³s） or Ne（³ρ_0,2） with POCl₃. The formation rate constants of PO（A） and PO（B） from the He（2³s）/POCl₃ reaction were determined to be 3.68×10^-11 and 9.40×10^-11cm³ molecule^-1s^-1, respectively. The nascent vibrational distribution of PO（A） and PO（B） from Ne（³ρ_0,2）/POCl₃ have been estimated.