Abstract
Dissociation of nitrous oxide clusters (N 2O) n , induced by core level excitation near the nitrogen K-edge was studied by time-of-flight (TOF) fragment mass spectroscopy. Besides the cluster ions (N 2O) n + with n ≦ 26, we identified another series of NO(N 2O) m + with m = 0–12 as well as O 2 + and N 3 + products characteristic of ion-molecule reactions within the clusters. Photoelectron–photoion–photoion-coincidence (PEPIPICO) technique was applied to study dissociation mechanisms and dynamics of core-excited (N 2O) n clusters. Charge separation mechanisms of the doubly charged (N 2O) n 2+ clusters by N t(1s → π*) excitation were interpreted in terms of kinetic energy release (KER) and charge separation distance (CSD).
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