Conjugated nitroxides
E.V. Tretyakov, В.И. Овчаренко, Alexander O. Terent’ev, Igor B. Krylov, Tatiana V. Magdesieva, Dmitrii G. Mazhukin, Nina P. Gritsan
Abstract
In recent years, research dealing with organic paramagnetic compounds such as stable radicals and high-spin systems has been focused on applied aspects. Several key trends have formed in the application and, hence, in the function-oriented synthesis of organic radicals and polyradicals. This review addresses one of such trends in which the dominant role is played by so-called conjugated nitroxides. Their specific feature is the presence of any unsaturated moiety (C=C, C=N or C=O multiple bond; aromatic or heteroaromatic ring; fused polyaromatic system) adjacent to the nitroxide group. The achievements of the chemistry of conjugated nitroxides are presented, and their physicochemical properties, magneto-structural correlations and practical applications are discussed.<br> The bibliography includes 641 references.