Synthesis, spectroscopic investigation and coductometry of a new hexadentate symmetric Schiff base ligand containing N2O2S2 donor atoms and related complexes with Cd(II), Zn(II), Co(II) and Mn (II) metal ions

In this paper, we report the synthesis and characterization of a new symmetric macroacyclic Schiff base ligand (H2L) and related complexes with different metals. (H2L) was synthesized by the one pot condensation reaction of 2-[2-(2-formyl phenoxy)ethoxy]benzaldehyde and 2-aminobenzenethiol in a 1:2 molar ratio. The acyclic Schiff base was characterized by IR, NMR spectroscopy and elemental analysis. Also, the resulting synthesized metal complexes in this work were characterized by elemental analysis, IR and molar conductivity in all cases and NMR spectroscopy for the case of Cd(II) complex. . The molar conductivities at 10-3 M concentration for the complexes in acetonitrile are in the range expected for their formulation as 1:2 electrolytes.