A reaction mechanism is the sum of the perceived elementary stages taken in their sequence and relative rate. A knowledge of the properties of intermediate particles and study of the mechanism of reactions open up possibilities of increasing the rate of formation and yield of the desired nal product. Transformations, including the formation of ion-radicals in the intermediate step, require special approaches to optimize them. In other words, it is necessary to determine whether the reaction proceeds through the formation of ion-radicals and, if so, which particles originate and at what stages. It is essential to learn whether these stages belong to the main or side routes of the reactions.