Kinetics Of The Thermal Disappearance Of Radicals Formed During The Radiolysis Of Ammonium Paramolybdate (Apmo)

Polycrystalline Mo7O24(NH4)(6)center dot 4H(2)O gamma irradiated at 77 K and room temperature was studied by EPR spectroscopy. The EPR spectra were assigned to the NH3+ radical-ion and to molybdenum in the V valence state (Mo5+) formed by Mo6+ radiolitically reduction. A suitable formation mechanism by irradiation of these radicals is proposed. The Mo5+ radical disappearance kinetics indicated a complex mechanism.