ABSTRACT

Abstract ..............................................................................................................94 5.1 General Statements ..................................................................................94 5.2 Magnetic Interactions in Stable Organic Paramagnets ...........................97 5.3 Organic Low-Molecular-Weight and High-Molecular-Weight

Magnets .................................................................................................. 112 Keywords .........................................................................................................121 References .......................................................................................................121

Communication between the phenomenon of a magnetism and paramagnetism, which stable radicals of different type possess is probed. It is shown that under the influence of an outside magnetic field there is a change of physical and chemical properties of some organic free radicals to the localized and nonlocalized unpaired electrons. Changes of properties of low-molecular and high-molecular organic paramagnets are caused by magnetic interactions occurring in them. Some iminoxyl polyradicals, possessing high value of a magnetic susceptibility, can weaken or increase strength of the enclosed magnetic field. One of the most important applications of stable paramagnets is their use as components to polarized proton targets in high-energy physics. It allowed to create nuclear precession magnetometers for geophysics and astronautics.