Abstract
Four Schiff-Base complexes of Cu(II), Co(II), Ni(II) and VO(IV) derived from Bis(2-hydroxy-4-methoxyacetophenone) ethylenediimine were synthesized. The Schiff-base (ligand) was formed by the 1:2 molar condensation of ethylenediamine with 2-hydroxy-4- methoxyacetophenone. The complexes were characterized by the elemental analysis, infrared and electronic spectra. The 2-hydroxy-4- methoxyacetophenone ethylenediamine was found be tetradentate ligand. Cu(II), Co(II) and Ni(II) coordinate with the ligand through both oxygen of the phenoxyl group and nitrogen of C=N azomethine to give square planar geometry except Co(II) which gave tetrahedral geometry. VO(IV) also coordinates using the same sites like other metals but gave tetragonal pyramidal configuration.
Issue
The Experiment 2013
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KeyWords:
Schiff-base, Condensation, Infra-red spectra, 2-hydoxy-4-methoxyacetophenone