Temperature dependence of the Cl+HN3 reaction from 300 to 480 K

The rate constant for Cl+HN3 over the temperature range 300–480 K has been studied in a flow reactor. Based on the rate of loss of HN3 and the rate of NCl(a1Δ) generation, the temperature dependence of this reaction is described by the collision theory expression 1.2±0.3×10−11 T0.5 exp(−1514±93/T), with E0=3.0±0.2 kcal mol−1 or an Arrhenius fit k(T)=2.0±1.0×10−10 exp(−1452±150/T) with Ea=2.9±0.2 kcal mol−1.