Kinetics of hydrogen peroxide decomposition in the presence of binuclear complexes of cobalt(II) with 1,4-piperazine-bis(carbothiosulfene diethylamide)

We have obtained complexes of Co(II) with 1,4-piperazine-bis(carbothiosulfene diethylamide) (L) of composition [Co 2 LX 4 ] (X = Cl, Br, I, NCS). We discuss the characteristic features of the decomposition kinetics for H 2 O 2 in the presence of these complexes and the effect of the acido ligands X...

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Veröffentlicht in:Theoretical and experimental chemistry 2011-05, Vol.47 (2), p.115-122
Hauptverfasser: Chikhichin, D. G., Kotseruba, V. A., Levchenko, O. A., Khitrich, G. N., Seifullina, I. I., Kamalov, G. L.
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Sprache:eng
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Zusammenfassung:We have obtained complexes of Co(II) with 1,4-piperazine-bis(carbothiosulfene diethylamide) (L) of composition [Co 2 LX 4 ] (X = Cl, Br, I, NCS). We discuss the characteristic features of the decomposition kinetics for H 2 O 2 in the presence of these complexes and the effect of the acido ligands X on their catalytic activity. We have observed isokinetic relationships between the activation parameters and the reaction rate constants. We show that the values of the parameters α and β in the Edwards equation to a considerable extent are due to the composition of the complexes and the ratio [H 2 O 2 ] 0 /[Cat] 0 .
ISSN:0040-5760
1573-935X
DOI:10.1007/s11237-011-9191-0