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SYNTHESIS AND CHARACTERIZATION OF SOME N 2 O 2 -SCHIFF BASES AND THEIR METAL COMPLEXES

Abdulhakim A. Ahmed, A. O. Agoob

Open publisher page 4 citations

Abstract

The syntheses of some Ni(II), Co(II) and Cu(II) Schiff base complexes have been reported. The Schiff base ligands H2L1 (C40H32N2O2), H2L2 (C32H28N2O2) and H2L3 (C22H26N2O2) under were prepared by the condensation of amines namely benzidine and 1,4-phenylenediamine with benzoin, benzoylacetone and acetylacetone. A fourth ligand H2L4 (C34H28N2O2) was obtained by the condensation of 1,4-phenylenediamine with benzoin. Schiff base ligands and their complexes have been subjected to elemental analysis, Infrared, electronic spectral studies, molar conductivity and magnetic moment measurements. The Ni(II) and Co(II) complexes showed an octahedral and square planar geometries. In addition, the analysis exhibited a different chelation mode towards metal and ligand substitution, since a mono- and dinuclear metal complexes have been identified.

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The syntheses of some Ni(II), Co(II) and Cu(II) Schiff base complexes have been reported. The Schiff base ligands H2L1 (C40H32N2O2), H2L2 (C32H28N2O2) and H2L3 (C22H26N2O2) under were prepared by the condensation of amines namely benzidine and 1,4-phenylenediamine with benzoin, benzoylacetone and acetylacetone. A fourth ligand H2L4 (C34H28N2O2) was obtained by the condensation of 1,4-phenylenediamine with benzoin. Schiff base ligands and their complexes have been subjected to elemental analysis, Infrared, electronic spectral studies, molar conductivity and magnetic moment measurements. The Ni(II) and Co(II) complexes showed an octahedral and square planar geometries. In addition, the analysis exhibited a different chelation mode towards metal and ligand substitution, since a mono- and dinuclear metal complexes have been identified.

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Available abstract

The syntheses of some Ni(II), Co(II) and Cu(II) Schiff base complexes have been reported. The Schiff base ligands H2L1 (C40H32N2O2), H2L2 (C32H28N2O2) and H2L3 (C22H26N2O2) under were prepared by the condensation of amines namely benzidine and 1,4-phenylenediamine with benzoin, benzoylacetone and acetylacetone. A fourth ligand H2L4 (C34H28N2O2) was obtained by the condensation of 1,4-phenylenediamine with benzoin. Schiff base ligands and their complexes have been subjected to elemental analysis, Infrared, electronic spectral studies, molar conductivity and magnetic moment measurements. The Ni(II) and Co(II) complexes showed an octahedral and square planar geometries. In addition, the analysis exhibited a different chelation mode towards metal and ligand substitution, since a mono- and dinuclear metal complexes have been identified.

Key concepts: Schiff base, Acetylacetone, Chemistry, Ligand (biochemistry), Molar conductivity, Polymer chemistry, Benzidine, Metal

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