R.J. Li, L.S. Alconcel and R.E. Continetti, "Dissociative photodetachment dynamics of (SO2)2: evidence for the S-O bound dimer.", Chem. Phys. Lett. 336, 81-87 (2001).

Studies of the dynamics of the dissociative photodetachment of (SO2)2- reveal a strong preference in translational energy partitioning that can be related to the structure of (SO2)2- using a simple impulse model. An anisotropic product angular distribution was also observed, indicative of a rapid dissociation on a repulsive potential energy surface. Over a wide range of available energies the translational energy distributions for this DPD process peak at approximate to 36% of the available energy, consistent with the soft-bond impulse model prediction that 33% of the available energy would appear in translation for an OSO-SO2 geometry (S-O bound) dimer anion.