Abstract

POTENETIOMETRIC STUDIES ON THE COMPLEXES OF NI(II) WITH SOME AMINO ACIDS AND 2-(2’-HYDROXY PHENYL) BENZOTHIAZOLE

Ravi Kumar Tiwari* and Gita Seth

ABSTRACT

The stability constants of binary and ternary metal complexes of Nickel(II) with some amino acids (L- leucine, L- valine, L- serine and L- glycene). As primary ligands and 2-(2’-hydroxy phenyl) Benzothiazole (HBT) secondary ligand have been determined potentiometrically at an ionic strength 1.0 mol dm-3 KNO3 at 35±10C. The stability of the binary and ternary complexes are discussed in terms of the molecular structure of primary and secondary ligand as well as the nature of the metal ion.

Keywords: Stability constant, Amino acids, 2-(2’-hydroxy phenyl) Benzothiazole.