Chemical Speciation Studies on Complexation of Ditopic Ligands: Interaction of Adipic Acid Dihydrazide with Pb2+, Hg2+ and Cd2+ Metal Ions in Aqueous Medium
Uma Rani Bhagavatula, Shyamala Pulipaka, Satyanarayana Atreyapurapu
International Research Journal of Pure and Applied Chemistry · pp. 1–10 · Published 10 Mar 2016
10.9734/IRJPAC/2016/24028Abstract
Chemical modelling study of the ligational behaviour of adipic acid dihydrazide (AADH) towards the toxic metal ions Pb2+, Hg2+ and Cd2+ has been carried out potentiometrically in aqueous medium. AADH possesses two coordinating units on either side of the molecule making it a ditopic ligand. Speciation analysis of the metal ion-AADH systems of different molar ratios using the Miniquad-75 program indicated the formation of mono and binuclear species in different states of protonation.
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