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R. J. Li and R. E. Continetti "Studies of the excited state dynamics of N2O2 by dissociative photodetachment of N2O2-.", J. Phys. Chem. A 106, 1183-1189 (2002).
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| The excited states of N2O2 have been characterized by studies of the dissociative photodetachment of N2O2- at 266 nm. Photoelectron-photofragment coincidence spectroscopy reveals the correlation between features observed in the photoelectron spectrum and different neutral dissociation pathways. Evidence for at least two isomers of N2O2- is presented and upper limits for their stabilities are determined. One isomer, ONNO-, is stable relative to NO + NO + e- by < 1.70 ± 0.05 eV, while the second isomer, trigonal N2O2-, is stable relative to O- + N2O by < 0.57 ± 0.05 eV. The observed dissociation channels are assigned to ONNO -> NO + NO, N2O2 -> O (3P) + N2O, and either O(1D) + N2O or N(4S) + NO2. No evidence for stable N2O2 was found, and the dissociation dynamics of the excited states of N2O2 are discussed. |
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