Vibrationally Excited Ozone Relaxation by CO
Time profiles of ozone concentration after pulsed UV laser photolysis in the O2- O3-Ar-CO mixture, measured using time-resolved absorption spectroscopy, are presented. The experimental results show the dominance of the stabilization channel over the reactive one for the interaction between the vibrationally excited ozone molecule O3(υ) and carbon monoxide CO. The rate constant of the process O3(υ)+CO→O3 + CO, obtained by processing experimental data by the kinetic modeling method is (1.5 ± 0.2) · 10−13 cm3/s.
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