Rate constant for the reaction CO(1Σ+) + O(3P) + CO2 → 2CO2

Abstract

A technique based on flash photolysis of CO₂ followed by chemiluminescent recombination of CO and O has been used to measure the rate of the over‐all recombination reaction CO(¹Σ⁺) + O(³P) + M → CO₂ + M. At 296 °K, the following third‐order rate coefficient for M = CO₂ was obtained: kCO₂ = 5.4 ± 0.7 × 10⁻³⁶ cm⁶ molecule⁻² · sec⁻¹. Values for M = CO and AR are derived in which k_CO = 4.5 ± 1.0 × 10⁻³⁶ cm⁶ molecule⁻² · sec⁻¹ and k_Ar = 9.8 ± 2.0 × 10⁻³⁶ cm⁶ molecule⁻² · sec⁻¹.