Synthesis and SpectralStudiesofSome MetalComplexes with Bis[O,O-2,3;O,O-5,6(ChlorocarboxylicMethyliden)]L-Ascorbic Acid


The reaction of L-ascorbic acid with the tirchloroacetic acid in the presence of potassium hydroxide gave new productBis[O,O-2,3;O,O-5,6(chlorocarboxylicmethyliden)]L-ascorbic acid (H2L)which was isolated and characterized by 1H,13C-NMR, elemental analysis (C,H,N), UV-Visible and Fourier Transform Infrared (FTIR). The complexes of the ligand (H2L) with metal ions, M+2= (Cu, Co, Ni, Cd and Hg) were synthesized and characterized by FTIR, UV-Visible, molar conductance, atomic absorption, magnetic susceptibility and the molar ratio. The analysis evidence showed the binding of the metal ions with (H2L) through the bicarboxylato group manner resulting in six-coordinated metal ion.The TLC for (H2L) and complexes showed one spot for each indicating the purity of these compounds.