Statistical modeling of sequential collision-induced dissociation thresholds

摘要: Thermochemistry determined from careful analysis of the energy dependence cross sections for collision-induced dissociation (CID) reactions has primarily come primary channel. Higher order dissociations generally have thresholds measured to be higher than thermodynamic limit because unknown internal and kinetic distributions products. A model that utilizes statistical theories energy-dependent unimolecular decomposition estimate these is proposed in this paper. This permits a straightforward modeling both secondary channels. The developed here used analyze data K+(NH3)x, x=2–5, complexes, chosen thermochemistry previously by threshold CID studies agrees well with values theory equilibrium high pressure mass spectrometry. found reproduce fidelity secon...