Simulation of the photodissociation of Ar-3(+)

A simulation of the photodissociation vl Ar-3(+) is performed in the range 200-650nm. The approach relies on Diatomic in Molecules electronic modelling, Molecular Dynamics and the Hemiquantal method. The results are used to interpret the experimental abundance of slow ions in terms of the various absorption bands. Kinetic energy distributions of all fragments are analysed at 530 and 280nm for two internal energies. The time evolution of the cluster is discussed and a concerted one-step mechanism emerges involving charge fluctuations. The simulation only yields fast-fast and fast-slow photoneutral-photoneutral coincidences.