عنوان المقالة:منعقدات فلزية مشتقة من مزيج ليكاند قاعدة شف مع مشتق داي ثايوكاربميت، تحضير، تشخيص طيفي ودراسة الفعالية البايولوجية Metal Complexes Derived from Mixed Azo-linked Schiff-base Ligand with Dithiocarbamate Derivative: Formation, Spectral Characterization and Biological Study
احمد كامل حسين/ انعام اسماعيل يوسف/ حسن احمد حسن/ رياض محمود احمد
المؤلفون بالإنجليزي
Ahmed K. Hussien/ Enaam I. Yousif/ Hasan A. Hasan/ Riyadh M. Ahmed
الملخص العربي
The study includes preparation and characterisation of mixed azo-linked Schiff-base and DTCs ligands and their complexes. The starting material was isolated from the mixing of naphthyl amine diazonium salt with 2-aminophenolein a 1:1 mole ratio in water. In this work, the formation of azo-linked Schiff-base and DTCs ligands are reported. Ligand of the azo-linked Schiff-base was achieved by the reaction of starting material with 4-(dimethylamino)benzaldehyde) (HL1). The DTCs was isolated by the reaction of (C6H5)2NH with carbon disulphide in potassium hydroxide (L2). The complexes were prepared by mixing the azo-linked Schiff-base ligand and DTCs ligand with the metal salts; CoII, NiII, ZnII and CdII in a 1:1:1 mole ratio. Ligands and complexes were characterised by analytical and spectroscopic analyses including; microanalysis, chloride content, thermal analysis, magnetic susceptibility for complexes, conductance, FTIR, UV-Vis and 1H-NMR spectroscopy.
Physico-chemical techniques indicated complexes demonstrated four and six coordinate structures in the solid and solution state. Biological activity of the ligands and their metal complexes were screened for their antimicrobial activity against four bacterial species (Escherichia coli and Enterobacter
Gram - ve, (Bacillus stubtilis and Staphylococcus aureus Garam + ve.
رياض محمود احمد | Riyadh Mahmood Ahmed | 12023