Synthesis and Characterization of Transition Metal Complexes of Cu(II), Ni(II), Co(II) and VO(IV) with Tetradentate Ligands Derived from Substituted Acetophenone and Benzophenone
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Date
2011-06-30
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Abstract
Two tetradentate Schiff base ligands, N,N´-bis(2-hydroxy-5-methoxyacetophenone)
ethylenediimine (MaenH2) and N,N´-bis(2-hydroxy-4-methoxybenzophenone)
ethylenediimine(MbenH2) were formed by 1:2 molar condensation of ethylenediamine with
2-hydroxy-5-methoxyacetophenone and 2-hydroxy-4-methoxybenzophenone respectively.
These Schiff base ligands formed complexes (1:1 molar ratio) with Copper, Nickel, Cobalt
and Oxovanadium ions. The complexes were characterized by Infrared, Electronic Spectra
and elemental analysis. The spectra data of the ligands and their complexes were discussed
based on the structural changes which occur due to complexation. The results suggest that
the metal is bonded to the ligand through the phenolic oxygen and the imino nitrogen.
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Osunniran, W. A. and A. C. Tella. (2011) Synthesis and Characterization of Transition Metal Complexes of Cu(II), Ni(II), Co(II) and VO(IV) with Tetradentate Ligands Derived from Substituted Acetophenone and Benzophenone. Elixir Appl. Chem., 36: 3343-3346. Published by Elixir International Journal (Photonics). Available online at https://www.elixirpublishers.com/