Thermal decay of laser-induced long living metastable electronic states in Na2[Fe(CN)5NO]·2H2O single crystals

And the decay was measured in the temperature range of 106 K-300 K. All metastable states decay thermally according to an exponential law. We could not observe any emission of radiation in the energy range of 5 eV-0.3 eV during the thermal decay. We have evaluated the activation energies E A and frequency factors Z assuming the validity of the Arrhenius law and a first order reaction for three different metastable states. They all can be completely annihilated with red light. A strong temperature dependence with respect to the generation of the metastable states was observed