Complex Formation of Nickel(II) and Copper(II) with Barbituric Acid
Figure 4
Species distribution curves of the metal ion Cu(II) and the BA as a function of pH, for a solution initially containing M metal ion and M BA. °C and MKNO3. % a is the percentage of a species present, with the concentration of the metal set at 100%; CuL, and CuL2, CuL3H are the complexed species with one, two, and three ligand molecules.
