ABSTRACT

The transition from the low-pressure gas to the condensed phase is accompanied by qualitative changes in the kinetics of many reactions caused by the presence of a dense solvent environment permanently interacting with reactants (also during their motion along the reaction path). Though this solvent influence in general may be a complex phenomenon as contributions of different origin tend to overlap, it is convenient to single out aspects that dominate the kinetics of certain types of reactions under different physical conditions.