Abstract
By the spectrophotometric method in solvents of different natures a study was made of the kinetics of the homolytic breakage of the axial cobalt-carbon bond in five-coordinate complexes with dianionic tetradentate equatorial ligands. The negative values obtained for the activation entropies of the processes investigated are explained by the existence of interaction between the components of the primary radical pair and the solvent molecules. The kinetic parameters of the redox-interaction reactions of some macrocyclic complexes of cobalt(II) with chloroform and carbon tetrachloride were determined. A scheme in which the autocatalytic homolysis of the Co-CH3 bond in the presence of chlorine-containing solvents is proposed.
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Schedule a callMore From: Bulletin of the Russian Academy of Sciences Division of Chemical Science
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