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Abstract

Spectroscopic Characterization and Thermal Studies of Nicotinamide Alkaline Earth Metal Complexes

Author(s): Foziah A. Al-Saif

Alkaline earth metal complexes of nicotinamide with general formula [M(nia)(Cl) 2 (H 2 O) 3 ].nH 2 O (where M = Mg(II), Ca(II), Sr(II) and Ba(II); n= 0-9 water molecules) were obtained by the reactions of the corresponding metal chlorides with vitamin B3 (nia) in the presence of 1 : 4 (v : v) distilled water: methanol solvent at 70 o C for about 30 min., and their suggested structures were determined by elemental analyses, molar conductivity, (infrared, UV-vis.) spectra , thermal analysis (TG), X-ray powder diffraction (XRD) as well as scanning electron microscopy (SEM). The results revealed that nicotinamide complexes associated with one of nia ligand coordinated toward metal ion to form six coordinated structures through N-bonded pyridine ligand. Antimicrobial were assessment against some kind of (G + and G – ) bacteria and fungi.


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