Equilibrium Studies on Mixed Liqand Complexes of 2-Mercaptoethyl Benzimidazole

P. Seshi Reddy and Dev Das Manwal

Department of Chemistry, Nizam College, Hyderabad 500 001 lndia.

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ABSTRACT:

Interactions of 2-mecaptoethylbenztmidazole with Co(ll). Ni(ll) and Zn(ll) in presence of [3-alanine, 1,3-diaminopropane and catechol have been studied pH metrically. The ternary complexes are formed in stepwise manner in which 2-mercaptoeathlyl benzimidazole behave as primary ligand. The stability sequence of ternary complexes found to be: 1,3-diaminopropane > catechol >β-alanine.

KEYWORDS:

Interactions; pH metrically; Equilibrium