SYNTHESIS AND CHARACTERIZATION OF MIXED LIGAND COMPLEXES OF 1-{(E)-(4-METHYL-2-NITROPHENYL)IMINOMETHYL}NAPHTHALEN-2-OL AND 2-{(E)-(2,3-DIMETHYLPHENYL)IMINOMETHYL}PHENOL WITH CO(II), NI(II), CU(II) AND ZN(II) IONS.
Atmaram K. Mapari K. Mapari
Paper Contents
Abstract
The mixed ligand complexes of Co(II), Ni(II), Cu(II) and Zn(II) with Schiff bases 1-{(E)-(4-methyl-2-nitrophenyl)iminomethyl}naphthalen-2-ol (L1H) and 2-{(E)-(2,3-dimethylphenyl)iminomethyl}phenol (L2H) have been synthesized and characterized. The resulting complexes were characterized by thermogravimetric analysis, magnetic moment measurements, conductivity measurements, IR, UV-visible spectral studies. The Schiff bases acts as bidentate monobasic ligands, coordinating through deprotonated phenolic oxygen and azomethine nitrogen atoms. The complexes are non-electrolytic in DMSO. The presence of the two coordinated water molecules in these complexes was indicated by IR spectra and thermogravimetric analysis of the complexes. From the analytical and spectral data the stoichiometry of these complexes have been found to be M(L1)(L2)(H2O)2 {where M Co(II) , Ni(II), Cu(II) and Zn(II)}. It is found that Co(II), Ni(II), Cu(II) and Zn(II) complexes exhibited octahedral geometry.
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Copyright © 2025 Atmaram K. Mapari. This is an open access article distributed under the Creative Commons Attribution License.