Regression Analysis of Rate Parameters for the Photoinduced Electron Transfer Reaction

The dependence of the rate constant for the quenching of the triplet state of xanthene dyes by cyanide complexes of transition metals on the free energy change of the photoinduced electron transfer reaction is correlational, rather than functional, in character. Experimentally, it was proved that there is no spin forbiddance in the photoinduced electron transfer reaction between these reactants. For the photoreactions with reactants in which dyes are electron acceptors, the values of the intrinsic barrier of electron transfer and the pre-exponential factor of the reaction rate constant were determined. A method for the determination of calculation errors for these values was proposed.