Abstract
The average cluster size remaining after photoinduced evaporation of a cluster of specific initial size can be predicted by an RRK/QET statistical model, provided that the correct average kinetic energy release is used. Theoretical justification for this correction, based upon detailed balance, is provided here. Agreement with experiments on (CO2)+n clusters at several wavelengths shows that for these aggregates the average bond strength above n=2 is approximately 3.6±0.6 kcal/mol.

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