Vibrational-State Distribution of O2 Generated by Multiphoton Dissociation of NO2 at 505 nm

Article abstract of DOI:10.1021/j100330a021

The internal state energy distribution of O2(X³Σ^-_g,v''=20-25), produced by the multiphoton dissociation of NO2 at 505 nm, was measured by pump-probe two-color experiments using a laser-induced fluorescence method.The vibrationally excited O2(v'') was generated by the reaction of O^* + NO2, where O^* was an electronically excited oxygen atom.The vibrational distribution was broad over v''=20-24 but dropped at v''=25.The behavior of O^* in the presence of NO2 or NO was subject to the O(¹S) kinetics in accordance with the recent result of Jusinski et al. (J.Chem.Phys. 1987, 86, 5509).The dynamics of the O(¹S) + NO2 reaction is discussed on the basis of the state distribution of O2(v'').