Catalase activity of cobalt(II) complexes with N,N,N′,N′-tetrasubstituted thiocarbamoylsulfenamides

On the base of the kinetic and activation parameters of the hydrogen peroxide decomposition in the presence of chelates of CoX 2 salts (X = Cl, Br, I, NCS) with N,N,N′,N′ -tetrasubstituted thiocarbamoylsulfenamides containing exocyclic (out-of-chelate) fragments of dimethylamine ( I ), piperidine ( II ), and piperazine ( III ) the nature of acido-ligands influence on catalase activity of complexes I–III was revealed, depending on the structure and composition of the chelating ligand. Mononuclear complexes I (Br) and II (Br) can transform into 10-membered binuclear macrochelate intermediates.