Mahameed AMEEN, Fadia AHMED

Preparation and Characterization of Some Complexes of Nickel(II), Copper (II), and Zinc (II) With Decylxanthate and their Adducts with Nitrogen Base Ligands, and their Biological Activity

This research includes the synthesis and characterization of twelve new complexes of mono nuclear xanthate for a number of transition metal ions Ni(II), Cu(II), and Zn(II) and through the interaction with ligand (potassium decyl xanthate) and complexes of formula [M(DEXANT)2] were prepared: M= Ni(II), Cu(II), and Zn(II), and then the interaction of these complexes with Lewis bidentate bases, to give complexes with the formula [M(DEXANT)2.L], where L= 1,10-phenanthroline, 8-hydroxyquinoline, and 2,2-bipyridine. The prepared complexes were characterized by melting point, atomic absorption spectrometry, micro elemental analysis, infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, molar electrical conductivity, electronic absorption spectra, and magnetic susceptibility measurements. Magnetic moment and electronic spectra indicated that the complexes of type [M(DEXANT)2] had a tetrahedral geometry, while complexes of type [M(DEXANT)2.L] had an octahedral geometry. The conductivity measurements proved the non-electrolytic behavior of all compounds. The biological evaluation against bacterial species indicated that the xanthate complexes were effective against all bacterial types.

Keywords:

Xanthate, Complexes, Nickel(II), Copper(II) Zinc(II), Biological Activity,

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