Kinetic study of the Cu(2S) atom reaction with chlorine (1Σg+) at 305–809 K

Abstract

A kinetic study of the reaction of Cu(4 ²S)+ Cl₂ [graphic omitted] CuCl(X ¹Σ)+ Cl(²P) has been performed in the temperature range 305–809 K. The measurements are carried out in a fast-flow reactor in which the ground-state copper atoms are generated by the microwave-induced plasma afterglow atomisation technique. Atomic absorption spectroscopy at 324.7 nm is used as the detection technique. From the temperature dependence of k₂ the Arrhenius expression k₂=(3.3 ± 1.1)× 10^–10 exp(–2.2 ± 0.4 kJ mol^–1/RT) can be derived. This result is discussed in the light of the electron-jump or harpooning mechanism.