Abstract
A new Schiff base (HL2) ligand (4-{2-[(2-hydroxy-benzylidene)-amino]-ethyl}-benzene-1,2-diol) has been synthesized by condensing of 4-(2-amino-ethyl)-benzene-1,2-diol and 2-hydroxy-benzaldehyde. In turn, its transition metal complexes were prepared, having the following general formulas: Ni(L-2)(2), Pd(L-2)(2), and Pt(L-2)(2)2Cl. The prepared ligand and its metal complexes Ni(II), Pd(II), and Pt(IV) have been characterized by Fourier transform infrared (FTIR) spectra, proton nuclear magnetic resonance (H-1-NMR) elemental analysis, metal content, chloride content, molar conductance, ultraviolet-visible (UV-Vis) spectra, magnetic susceptibility, mass spectrometry (MS) spectra, and thermogravimetric analysis (TGA). The consequences proposed that Schiff base acts like a bidentate ligand for all the prepared complexes. The antioxidant performance of as-prepared compounds was inspected using the DPPH radical scavenging method. The compounds showed antioxidant activities of scavenging free radicals.