Synthesis, Spectroscopic Characterization, Coordination, and Antimicrobial Activity of Some Metal Complexes Derived From 1, 2-Diphenylethane-1, 2-dione and Dinitrophenyl Hydrazine Schiff Base Ligand

Abstract

New Schiff base ligand (L) synthesized by 1, 2-diphenylethane-1, 2-dione and dinitrophenyl hydrazine acts as a bidentate system with O and N as donors readily available for coordination with metal atoms. The metal complexes (ML) were synthesized and characterized by various spectroscopic methods including 1H-NMR (proton NMR, hydrogen-1 NMR), elemental analysis, FT-IR (Fourier transform infrared spectroscopy), molar conductance, and ultraviolet-visible spectroscopy (UV-Vis). Molar conductance and analytical studies confirmed that the complexes exhibit tetrahedral geometry. The antimicrobial activity of ligand and its metal complexes was assessed on different species of pathogenic fungi and bacteria. The results are suggestive of the fact that the synthesized compounds own notable antimicrobial properties.

Co-ordination behaviour of hydrazine and isomers of acetoxy benzoic acids with transition metal ions

“…Other two residues were micro sized metal oxides with irregular shapes.Conductance studiesThe molar conductance of selected complexes, ([Zn{(2-ab) 2 (N 2 H 4 )}].3H 2 O, [Co{(3-ab) 2 (N 2 H 4 )}]. 3H 2 O and [M(4-ab) 2 (N 2 H 4 ) 2 ].2H 2 O, where M = Ni and Cd) was determined using DMSO as solvent and compared with the reported values[38,39]. Except zinc and cadmium complexes (76 and 67 ohm -1 cm 2 mol -1 , respectively), other transition metal complexes behaved as low conductivity electrolytes by showing molar conductance values in the range of 10-12 ohm -1 cm 2 mol -1 indicating that they were neutral complexes.…”