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Abstract

A group of divalent complexes was prepared in the formula [M(L)Cl2] when M=Co+2, Ni+2, Cu+2, Zn+2, and Cd+2 L= (Z)-4-((1-(H-indol-3-yl)ethylidene)amino)1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one. The Schiff base ligand is prepared by reacting 4-aminoantipyrine with 3-acetylindol. The prepared ligand and complexes were identified by elemental analysis, an infrared spectrometer, the nuclear magnetic resonance spectrum, molar electrical conductivity, electronic spectra, magnetic susceptibility, atomic absorption of the elements, and biological efficiencies. The measurements showed that the synthesized ligand interacts with the central metal ion through the oxygen carbonyl group and nitrogen azomethine atoms, that the coordination of the prepared complexes has a square planar nickel complex and the tetrahedral geometry of other complexes, and that these complexes are non-electrolytic.The synthesized compounds have good antibacterial activity against Gram-negative bacteria, represented by Pseudomonas savastanoi, and Gram-positive bacteria, represented by Bacillus subtilis.

Keywords

4-aminoantipyrin substitute, Biological activity, Schiff base ligand, Square planar complexes, Transition metals.

Subject Area

Chemistry

Article Type

Article

First Page

1077

Last Page

1084

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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