Mixed Ligand Complexes of 2 (2'-Pyridyl) Benzimidazole - Solution Studies

Devdas Manwal and C. Tayaramma

Department of Chemistry, Nizam College, Osmania University, Hyderabad - 500 001 India.

ABSTRACT:

The influence of. the extent of aromaticity on the metal ligand π - Interactions, was investigated potentiometrically by evaluating the formation constants of ternary metal complexes MLA, where, M = Co(ll), Ni(ll), Cu(ll), and Zn(ll); A = 2 (2' - Pyridyl) benzimidazole; L = Maltol, Kojic acid or Acetyl acetone at 30°C and I=0.1 M KN03 in 30% methanol - aqueous medium. These formation constants are compared with the formation constants of ternary complexes MLA where M = Co(lI), Ni(ll). Cu(ll). and Zn(ll); A = Bipyridyi or 1,10 - Phenanthroline; L = Maltol, Kojic acid or Acetyl acetone.

KEYWORDS:

Benzimidazole; potentiometrically; Kojic; Acetyl

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Copy the following to cite this article: Manwal D, Tayaramma C. Mixed Ligand Complexes of 2 (2'-Pyridyl) Benzimidazole - Solution Studies. Orient J Chem 1998;14(1).

Copy the following to cite this URL: Manwal D, Tayaramma C. Mixed Ligand Complexes of 2 (2'-Pyridyl) Benzimidazole - Solution Studies. Orient J Chem 1998;14(1). Available from: http://www.orientjchem.org/?p=21659