A kinetic model for clustering of water on hydrated protons in a supersonic free jet expansion

摘要: A simple model with three variable parameters is developed for calculating observed clustering data from a free jet expansion. One parameter, σR1, can be associated reactive collision diameter monomer associating cluster to form larger, excited cluster. second σR3, energy transfer the surrounding gas. The third K′, constant in unimolecular decay rate expression cross sections that give best fit of experimental are given by (π/4) σ2R1 =9.90×10−16 cm2 and σ2R3=5.22 ×10−17 cm2. No value could assigned K′. Apparently clusters stabilized exchange collisions this particular flow field before there appreciable decay. Good fits obtained even though these same values used varying size 6 26 water molecules. Since clustering...