Absolute rate constants for the reaction of O3(P) atoms with allene, 1,3-butadiene, and vinyl methyl ether over the temperature range 297–439 °K

Abstract

Absolute rate constants for the reaction of O(³P) atoms with allene, 1,3‐butadiene, and vinyl methyl ether have been determined over the temperature range 297–439 °K using a flash photolysis–NO₂ chemiluminescence technique. The Arrhenius expressions obtained were k₂(allene) =2.04×10⁻¹¹ e^{−(1755±200)/RT} cm³ molecule⁻¹ sec⁻¹, k₂(1,3‐butadiene) =2.26×10⁻¹¹ e^{−(105±200)/RT} cm³ molecule⁻¹ sec⁻¹, k₂(vinyl methyl ether) =6.32×10⁻¹² e^(75±200)/RT cm³ molecule⁻¹ sec⁻¹, with room temperature rate constants of (1.07±0.11) ×10⁻¹² cm³ molecule⁻¹ sec⁻¹, (1.94±0.19) ×10⁻¹¹ cm³ molecule⁻¹ sec⁻¹ and (7.14±0.71) ×10⁻¹² cm³ molecule⁻¹ sec⁻¹ for allene, 1,3‐butadiene, and vinyl methyl ether, respectively.