METAL-LIGAND STABILITY CONSTANTS OF Pr(III) , Nd(III) AND Sm(III) METAL IONS COMPLEXES WITH SOME SUBSTITUTED ISOXAZOLINE pH-METRICALLY

Abstract

The stepwise stability constant values of substituted isoxazoline with Pr(III), Nd(III), and Sm(III) metal ion have been studied at 0.1M ionic strength pH-Metrically in 70% ethanol-water mixture by Bjerrum method as adopted by Calvin Wilson. The values of proton-ligand stability constant (pK) and metal-ligand stability constant (log K) are calculated and from the data obtained it is observed that metal ions formed 1:1 complexes with ligands L₁ and L₂  using half integral & pointwise calculation method