Polarographic Study of Cd2+ with Schiff Base, bis-p-methoxybenzyliminoethane in DMF-Water media

University Department of Chemistry, Saurashtra University, Bhavnagar. Manuscript received 26 March 1976, revised 14 October 1976, accepted 10 February, 1977 The complexation of Cd2+ with the Schiff base bis-p-methoxy benzylimino ethane, has been investigated polarographically in dimethyl formamide water mixtures. The metal to ligand ratio of the complex is found 1 : 1 in the mixed solvent used. Stability constants are calculated at three different temperatures and thermodynamic functions \(\Delta\)G, \(\Delta\)H and\(\Delta\)S for the complexation have been reported. A relationship between pH and E\(\frac{1}{2}\) of the system is shown by empirical equation similar to the polarographic wave equation. Ligand proton stability constant is evaluated by utilizing this equation and verified potentiometrically. The effect of solvent on complex composition is discussed