Correlated photofragment product distributions in the photodissociation of NO2 at 212.8 nm

The 212.8 nm photolysis of NO2 has been studied using REMPI–TOF and LIF techniques. Photodissociation occurs via a parallel transition on a time scale which is rapid compared to molecular rotation, producing anisotropic TOF profiles. Analysis of state selected NO flight profiles gives the correlated photofragment product distributions and shows that the predominant photodissociation channel produces vibrationally excited NO in v=3 with O1D as the co-fragment. If NO is formed in a rovibrational level for which O1D production is energetically allowed then it is the exclusively produced co-fragment.