Contact and remote ion radicals formation and recombination Original Research Article

The most general theoretical model of charge separation, after binary ionization in solutions, is developed. The model includes the contact creation of the exciplexes during encounters of neutral reactants and their generation due to association of solvent separated ion pairs. The recombination of singlet ion pairs to the ground state and triplet ion pairs to the triplet excited state of the reactants are also included. The spin conversion in ion pairs is considered as a stochastic process which affects the quantum yields of reaction products. Assuming contact recombination of ions, two alternative schemes of exciplex production are considered separately and analytical solutions for all the quantum yields have been found.