Thermal behavior, antimicrobial potential of some new synthesized four coordinated mercury complexes

Schiff bases are the most widely utilized chelating ligands in the development of coordination chemistry of Schiff base ligands containing an imine group are usually formed by the condensation reaction between a primary amine and an active carbonyl. Because of the possible variety of the initial reactants for the synthesis of Schiff bases ligands, these compounds show a wide variety of antibacterial and anticancer activities, catalysts and luminescent properties [1, 2].In this study, six new mercury‐Schiff base compounds formulated as HgLX2 (L is a new N2‐Schiff base ligand derived from 1,2-diaminopropane and 4-methoxyphenyl propenal and X is (Cl-, Br-, I-, N3-, NCS-, and NO3-) were synthesized and characterized by Fourier transform infrared, 1H and 13C NMR, UV–visible, thermal analyses, and molar conductivity measurements. Mercury complexes have been also prepared in nanostructure sizes under ultrasonic irradiation confirmed by X‐ray powder diffraction and scanning electron microscopy. Antibacterial/antifungal activities of the compounds were screened by the disk diffusion method against the Gram-negative bacteria and the Gram-positive bacteria. The results showed remarkable ability of some mercury complexes for DNA cleavage.