Real-time probing of elementary charge transfer processes in liquids and solutions

With the intensive development of ultrafast spectroscopic methods, the cour se of elementary reactions may be observable on the time scale of molecular motions. The femtosecond solution chemistry allows the real-time probing o f solvent cage effects during charge transfers. Recent studies devoted to t he understanding of electron dynamics in liquid phase are presented and dis cussed in the framework of quantum theories on nonequilibrium electronic st ates. This progress provides guidance for further research works on the mic roscopic description of reactional processes occurring in complicated many body systems.