Determination of reaction rates via the discharge-flow chemiluminescence imaging technique: gas-phase reactions of O(P) with CFClCXY (X,Y=H,F,Cl)
2000
Abstract The rate coefficients between the ground-state oxygen atom, O( 3 P), with CFClCXY (X,Y=H,F,Cl) have been determined by employing the chemiluminescence (CL) imaging technique coupled with the discharge-flow method. Concentration profiles of O( 3 P) in the reaction tube were extracted from the two-dimensional NO 2 CL images of the entire reaction zone monitored by a charge-coupled device camera. The rate coefficients at room temperature of O( 3 P) with CH 2 CH 2 , CFClCF 2 , CFClCH 2 , CFClCFCl, CFClCHCl, and CFClCCl 2 have been determined to be (7.38±0.22), (5.04±0.14), (4.43±0.10), (2.67±0.07), (1.57±0.02), and (1.36±0.02)×10 −13 cm 3 molecule −1 s −1 , respectively.
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