NONCONTACT DIFFUSION-ACCELERATED PHOTOIONIZATION

A model is proposed for a noncontact reaction layer. It is capable of approximating the real spatial dependence of non-adiabatic electron tr ansfer in the Marcus inverted zone. The model allows a rigorous analyt ical calculation of the rate constant of the transfer, accelerated by the mutual diffusion of the partners. The calculated effective transfe r radius and its variation with the diffusion coefficient agree with t he experimental data and also with a reasonable estimate of the exchan ge interaction and free energy of reaction in solvents of medium polar ity.