The kinetics of the reactions of copper(II) with heptane-2,4,6-trione (H2hto), 1-phenylhexane-1,3,5-trione (H2phto) and 1,5-diphenylpentane-1,3,5-trione (H2dppto) in methanol-water (70:30 vol./vol.) solution at 25 °C and ionic strength 0.5 mol dm-3have been investigated. The equilibrium constants for these reactions have been determined. Two possible mechanisms are discussed. The dimerization reactions of [Cu(Hhto)]+and [Cu(Hphto)]+were also investigated. A detailed mechanism is proposed which is consistent with the experimental data. © 1991.
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