Synthesis and Characterization of a New Difunctional Ligand and Its Metal Complexes: An Experimental, Theoretical, Cyclic Voltammetric, and Antimicrobial Study

Abstract

A new difunctional Schiff base ligand and its some metal complexes were synthesized. The compounds were characterized by elemental analysis, ¹H-NMR, ¹³C-NMR, FT-IR, UV-VIS, magnetic susceptibility measurements, molar conductivity measurements, and thermal gravimetric analysis techniques. Additionally, DPPH scavenging, metal chelating and antibacterial activity of compounds were examined via in vitro methods. The lowest DPPH scavenging activity observed by Co(II) as 36.28% and highest was ligand as 52.00%. A cyclic voltammetric study was also carried out to determine redox potentials of the compounds. Some theoretical studies such as ¹H-NMR, HOMO-LUMO, and mapped electron density of the ligand were also carried out successfully.

Keywords:

• Schiff base complexes
• cyclic voltammetry
• antimicrobial
• antioxidant
• Gaussian 09
• electron density

Funding

This study was supported by Scientific Research Projects Unit of Siirt University (Project code: BAP-2011-SİÜFED-F2; Turkey).