A Comparative Study on the interaction of some metal ions with Glutamic Acid and LCysteine as Primary Ligands and Thymine as a Secondary Ligand using Potentiometry in Aqueous Medium
Journal Title: International Journal of Research in Chemistry and Environment (IJRCE) - Year 2012, Vol 2, Issue 4
Abstract
The formation constants of the ternary (1:1:1) and quaternary (1:1:1:1) complexes of PbII, HgII , CdII, ZnII, CoII, and NiII with Glutamic acid / L-Cysteine as primary ligand and Thymine as secondary ligand have been determined potentiometrically in aqueous medium. A comparative study of the said ligands with respect to their stability, solution structures and quantitative aspects has been done. Acid dissociation constants of the ligands used and the formation constants of the ternary and quaternary complexes were determined at 37±1o C and in ionic strength I = 0.1 M NaNO3. The stability constants of all the quaternary complexes formed by L-Cysteine are relatively higher than that of complexes of Glutamic acid probably due to the high affinity of thiol group for heavy metals. Complexation equilibria have been deduced on the basis of speciation curves obtained through SCOGS computer program. The sequence of overall stability constants for both the primary ligands have been compared and discussed.
Authors and Affiliations
Bartaria Divya, Chandra Pallavi, Singh Monika, Krishna V.
Keywords
Related Articles
- EP ID EP136061
- DOI -
- Views 94
- Downloads 0
Synthesis, Characterization and Antibacterial Activity of Novel Schiff Base Derived From 4-Acetyl-3-Methyl-1-(4’-Methyl- Phenyl)-2-Pyrazolin-5-One and its Transition Metal Complexes
The novel Schiff base has been synthesized from 4-acetyl-3-methyl-1-(4’methylphenyl)-2-pyrazolin-5-one with 2-amino-4-phenyl-5-methyl thiazole and was characterized by elemental analysis, mass spectra, 1H NMR spectra, 13...
Synthesis, Characterization and Antimicrobial Evaluation of some 5- (substituted)-2-amino-Thiadiazoles
Novel thiadiazoles were synthesized from Morpholine, Phthalimide and Piperidene. From these compounds various 1,3,4-Thiadiazole derivatives (A4(a-j), B4 (a-j), C4 (a-j) respectively have been synthesized. The c...
Production of Biodegradable Plastic from Waste Using Microbial Technology
Waste generated from agriculture industry, dairy industry, oil industry can be used as a raw material for the production of PHA using the microbial technology. PHA can also be further converted in to PHB by adapted indig...
[b] Study of Resistances in Submerged Membrane Bioreactor: PART II - Membrane Fouling Phenomena for Hospital Wastewater[/b]
[i] Membrane fouling studies for wastewater originating from a hospital has been carried out by laboratory-scale hollow fiber membrane bioreactor (MBR) for two different seasons. The two seasons considered was dry s...
Pesticides usage in Cabbage (Brassica oleracea) Cultivation in the Ejisu-Juaben Municipality of the Ashanti Region of Ghana
One of the setbacks to cabbage production in the forest ecozone of Ghana is insect pests. These insect pests are controlled in various ways, prominent among them being the use of pesticides. The objectives of this res...