Synthesis and spectroscopic and biological activity for binuclear complexes with Mn(II),Fe(II) and Zn(II) with ligand type N2O2

Abstract

     In this work, the m-phenylene diamine and resorcinol have been used in the synthesis ligand [m-phenylene bis(azo resorcinol)] tetradentate type (N₂O₂).

     The tetra dentate ligand was reacted with the metal ions Mn^(II),Fe^(II)and Zn^{(II )}in (2:2) mole ratio via reflux in Ethanol using Et₃N as a base to give binuclear complexes of genral formula [M₂(L)₂(H₂O)₄]. The synthesized compounds were characterized by spectroscopic methods [I.R, UV-VIS and A.A] along with melting point, chloride content and conductivity measurements. These studies revealed an octahedral geometries for Mn^(II) , Fe^(II) and Zn^(II) complexes.

     The ligand and its complexes exhibited biological activity against the Bacillus(G⁺) strain and the E.coli(G^-) strain.