Enaam I. Yousif, Hasan A. Hasan, and Mohamad J. Al-Jeboori
Abstract
The synthesis of dinuclear transition metal(II) dithiocarbamate (dtc)-based macrocyclic and their
characterisation are described. The bimetallic dithiocarbamate-based complexes were prepared via a one-pot
reaction using bis-amine-Schiff base, CS2, KOH and metal chloride. The mode of bonding and overall geometry
of the dinuclear complexes were determined through IR, UV-Vis, NMR, and mass spectral studies, magnetic
moment measurements, elemental analysis, metal content, and conductance. These studies revealed binuclear
complexes of the general formulae [M2(L)2] with tetrahedral geometries for CoII and ZnII complexes, while square
planar geometries have been suggested for NiII and CuII complexes. Biological activity of the ligand and its metal
complexes against gram positive bacterial strain Staphylococcus aureus and gram negative bacteria Escherichia
coli revealed that the metal complexes become more potentially resistive to the microbial activities as compared to
the free ligand. However, these metal complexes do not exhibit any effects on the activity of Pseudomonas
aeruginosa bacteria. There is therefore no inhibition zone.
ا.د. انعام اسماعيل يوسف | Enaam Ismail Yousif | 22557