Photoinduced electron transfer and multiple
Results of our ps-fs laser photolysis studies on interactions be- tween unlinked D(donor)-A(acceptor) systems in luminescence quenching reactions and reaction dynamics of produced transient CT (charge transfer) or IP(ion pair) states and also on some D-A systems linked by flexible chains or directly can be interpreted satisfactorily by considering the formation of multiple CT and/or IP states with different structures depending on solvation, strength of D-A interaction and energy gap for ET (electron transfer) and change of the distribution of those states in the course of reaction. Also, the most fundamen- tal factors regulating the photoinduced ET have been examined by using fixed distance dyads and some new critical aspects concerning the energy gap dependences of ET reactions have been demonstrated.