Reaction kinetics of O(1D) with CF3CN

Abstract

The rate constant for removal of O(¹D) by reaction with CF₃CN has been measured to be (1.3 ± 0.2) × 10⁻¹⁰ cm³ molecule⁻¹ s⁻¹ at room temperature by a time-resolved laser induced fluorescence (LIF) technique. The quantum yield for the electronic quenching O(¹D) to O(³P) has been also measured to be 0.14 ± 0.02. The O(¹D) and O(³P) atoms were detected by LIF using a vacuum ultraviolet laser as a probe laser. CN(X²Σ⁺) and NCO(X²Π) products were also detected by LIF using ultraviolet and visible lasers, respectively. The CN(X) radical was observed as a primary product, while the NCO(X ²Π) radical was not observed as a primary product in the present reaction.