The effect of acetate ion on the reaction between copper(II) and the ethylenediaminetetraacetatonickelate(II) ion

Article abstract of DOI:10.1021/ic50024a023

The kinetics of the substitution reaction between the mono- and diacetate complexes of copper(II) and the ethylenediaminetetraacetatonickelate(II) ion have been studied at several pH values at an ionic strength of 1.25 maintained with sodium perchlorate. The temperature dependence of both forward and reverse rates has been determined. In the forward reaction, the formation of acetate complexes of copper(II) causes a decrease in reaction rate, whereas in the reverse reaction, an increase in reaction rate is observed. These differences are compared to similar exchange systems and discussed in terms of proposed dinuclear reaction intermediates and the rates of loss of water from the hydrated and complexed ions.