SYNTHESIS AND CHARACTERIZATION OF Ni(II), Cu(II) AND Cd(II) METAL COMPLEXES OF 4-CHLORO-3-SULFAMOILBENZOIC ACID

Abstract

In this study, Ni (II), Fe (II) and Co (II) metal complexes (Ni4Cl3sba, Cu4Cl3sba and Cd4Cl3sba) of 4-chloro-3-sulfamoylbenzoic acid (H34Cl3sba) were synthesized. The structures of transition metal complexes have been proposed by elemental analysis, AAS, FT-IR, magnetic susceptibility, molar conductivity, charge balance and previous studies. The experimentally obtained elemental analysis and AAS results of the synthesized substances are in agreement with the amount of elements calculated from the structures proposed as a result of spectroscopic studies. Acid:metal ratio of 2:1 was observed in all complexes. The stress and vibration bands that should be observed when examining the FTIR spectra of the complexes were observed in the spectra. In magnetic susceptibility studies of metal complexes, metal ions were found to be d8 in Ni4Cl3sba{Ni (II)}, d9 in Cu4Cl3sba {Cu (II)} and d10 in Cd4Cl3sba {Cd (II)}. As a result of conductivity measurements, it was observed that not all complexes were ionic. The structures of the synthesized metal complexes were observed to be regular tetrahedral for Ni4Cl3sba and Cu4Cl3sba complexes and octahedral for the Cd4Cl3sba complex. In the literature, the properties of 4-chloro-3-sulfamoylbenzoic acid and its derivatives such as Na, K and Fe (III) complexes as well as herbicide-protective, antibacterial, diuretic radioprotective activity, antiviral and enzyme inhibitor are found in the literature.