Convergence of Ni (Ii), Zn (Ii) and L-Glutamine Binary Complexes in Dimethylformamide-Aqueous Mixture

The convergence analysis of Ni (II) and Zn (II) and L- Glutamine complexes were studied using (0-50% v/v) dimethylformamide (DMF)-water mixtures potentiometrically at temperature 301.0 K, having an ionic strength of 0.15 mol L^-1. The complex species models were analyzed by a well-defined computer Programme MINIQUAD75. Exhaustive modeling have been carried out on a number of complex species. The main complex species formed have been found of NiL₂, NiL₂H, NiL₂H₂, ZnL₂, ZnL₂H andZnL₂H₂type. On the basis of the statistical parameters the best fit chemical modelling have been applied. The statistical data analysis validated the complex species. The occurrence of columbic interactions over non-columbic interactions have been identified by linear variation stability of the medium with the help of mole fraction, and the preference of non-columbic interactions over columbic interactions as per linear variation of stability are because of dielectric constants of the medium.