Taking environment into account in the theory of liquid-phase reaction rates with electron transfer in the discrete solvent model

The structure of a closed system of kinetic equations based on the lattice gas model is discussed for multistage processes in condensed phases including the electron transfer stage. The transition from the traditional energy description of the state of a system to the coordinate description is related to the necessity of the inclusion of the spatial correlation of mixture components. An arbitrary type of interaction potentials between solution components is considered possible. Electron transfer is limited by the reorganization of surrounding molecules. Local distributions of mixture components form a local potential barrier to electron transfer. The system of equations was constructed for an arbitrary electron transfer mechanism. The distributions of all solution components are calculated in the quasi-chemical approximation for taking into account the spatial correlation of interacting particles. The evolution of reagent and solvent molecule local distributions determines the influence of solution component concentrations on both the local and overall rate of liquid-phase reactions.