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Ternary Complexes of Cobalt(II) involving Nitrilotriacetic Acid and Some Biologically Active Ligands

Author Affiliations

  • 1Faculty of Science, Chemistry Department, Sirte University, Sirte, LIBYA

Res.J.chem.sci., Volume 2, Issue (3), Pages 12-20, March,18 (2012)

Abstract

Ternary complexes of cobalt(II) with nitrilotriacetic acis as a primary ligand and some selected mono- and dicarboxylic acids as secondary ligands have been investigated by the potentiometric technique at T = 30ēC and I = 0.1 mol dm-3. The ternary complexes are formed in a stepwise mechanism. Confirmation of the ternary complexes in solution has been carried out using conductometric measurements. The solid complexes of cobalt(II) involving nitrilotriacetic acid as a primary ligand and phthalic acid or benzoic acid as a secondary ligands were prepared and characterized by elemental analysis, IR and thermogravimetric analysis.

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