Electron Spin Exchange in Aqueous Solutions of K2(SO3)2NO

Abstract

The electron spin exchange frequency of potassium peroxylamine disulfonate as a function of concentration has been studied by electron spin resonance techniques. The exchange frequencies have been calculated from measurements of the linewidths and the line separations using the modified Bloch equations. The frequencies thus obtained are in agreement with each other. The functional dependence of exchange frequency upon concentration can be expressed as ω=bCm, where m is of the order of unity. The effect of molecular oxygen upon the spin exchange measurements is described. The resonance line shape has been found to deviate from Lorentzian at low concentrations.