The Reaction of some Transition Metal Ions Like Cu(Ii), Co(Ii), Cd(Ii), Fe(Ii), Ni(Ii), Mn(Ii) and Zn(Ii) With P-Bromo-Benzoylacetone (P-Bba) Have Been Carried Out Ph-Metrically In 75% Dioxane-Water at Different Temperatures and the Ionic Strength 0.1 M (Naclo4).
The Order of Metal Ions According to the Increasing Stability of the Complexes Is Found to Be:
Cd < Mn < Co < Zn < Ni < Fe < Cu
The Thermodynamic Parameters G, H and S Have Been Calculated at 30C. from These Values, It Is Clear That the Interaction Between P-Bba and the Metal Ions Is Chelation.