MONOMER-EXCIMER KINETICS IN SOLUTION .1. STOCHASTIC MANY-PARTICLE APPROACH

A stochastic many-particle approach is applied to study the kinetics o f reversible excimer formation in solution. Coupled dynamic equations for the macroscopic concentrations and for the radial distribution fun ction are derived, anti applied to analyze: (i) time resolved kinetics after a short pulse, and (ii) steady-state kinetics. Renormalization of the phenomenological excimer;dissociation rate coefficient due to n onequilibrium effects is discussed. A relation is demonstrated between steady-state, i eversible monomer-excimer kinetics and irreversible; fluorescence kinetics. Explicit results are given for the excimer fluo rescence yield, assuming the Smoluchowski-Collins-Kimball reactivity m odel.