SYNTHESIS, ELECTROSYNTHESIS AND ELECTROCHEMICAL PROPERTIES OF SUBSTITUTED 2,2,6,6-TETRAMETHYL-PIPERIDINE AND THE RESPECTIVE STABLE NITROXYLRADICALS - XIV

The various derivatives of 2,2,6,6-tetramethylpiperidine and their. st able nitroxyl radicals were investigated by means of chemical, electro chemical and empirical calculation methods. The titration results were calculated by means of TURBO BASIC with PKAS and MINIGLASS algorithm, and the prototropic experimental data were obtained. The reaction way s were calculated on the basis of the formation enthalpie values which were calculated by means of AM 1 (MOPACK) method. On the basis of a v oltammetry and an electrolysis under controlled potential the reaction products were analyzed and the yields of the investigated processes w ere received. The various quasi-reversible redox reactions of the type stable nitroxyl radical double left right arrow oxoammonium cation we re investigated by means of a cyclic voltammetry and electrochemical i mpedance spectroscopy. The mechanisms of the investigated reactions ha ve been discussed and the reaction schemes are presented.