Theoretical investigation of N (2D) + HOX (Cl, Br) reaction
The doublet potential-energy surface for the reaction, N (2D) + HOX (X = Cl, Br) has been studied employing both second-order Møller-Plesset and density-functional theory. The energies of the involved species have been refined using the complete basis set and coupled-cluster singles and double (triples) methods. Angular momentum-resolved (i.e. J-resolved) microcanonical variational transition state theory rate constant calculations are carried out to gain insight into the dynamics of this reaction. The minimum energy path of the title reaction occurs predominantly via the insertion-dissociation mechanism. The energetically most favourable product channels lead to the formation of HNO + X and NO + HX. The results indicate that the reaction shows positive temperature dependence in the temperature range of 200–500 K.
