Nano-second laser flash photolysis data on electron- transfer between Ru (bpy)32+* and Fe3+ in a number of C1 to C10 n- alkanols at room temperature are interpreted in terms of the Perrin Kinetics and the first-order perturbation theory formalisms. Experimental values of the Frank-Condon factors increase with decreasing lambda (the solvent reorganization energy) in the normal region (lambda > -DELTA-G(o), pass through a maximum around lambda = - DELTA-G(o) and then decrease with decreasing lambda in the inverted region (lambda < -DELTA-G(o). These observations are in excellent agreement with the Marcus theory of electron-transfer.


M A RAUF ,M S TUNULI ,