SOLVENT EXTRACTION STUDIES ON Zn(II) AND Cd(II) COMPLEXES OF 1,5-DIMETHYL-2-PHENYL-4[(E)-(2,3,4- TRIHYDROXYPHENYL)]DIAZENYL-1,2-DIHYDROXYL-3H- PYRAZOL-3-ONE.
ABSTRACT The azo-ligand, 1,5-dimethyl-2-phenyl-4-- 1,2-dihydro-3H-pyrazol-3-one (H3L) and its Zn(II) and Cd(II) complexes have been synthesized and characterized based on stoichiometric, molar conductance, electronic and infra-red spectral studies. The results showed that H3L reacted with the metals in 2:1 ratio. H3L coordination was through the hydroxyl, azo and carbonyl groups to form 2+ and 2+ respectively. Solvent extraction studies on Zn(II) and Cd(II) using 1,5- dimethyl-2-phenyl-4--1,2-dihydro-3H-pyrazol-3-one were carried out with CHCl3. ...
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