Spectroscopic and Biological activity studies of azo ligand type (N,O)and its complexes with CrIII,MnIIand FeII ions

Abstract

Azo derivative ligand[H3L] have been synthesized by the reaction of diazonium salt of
p-amino benzoic acid with orcinol in(1:1)mole ratio. The bidente ligand was reacted with
the metal ions MnII,FeIIandCrIIIin(2:1)mole ratio via reflux in ethanol using Et3N as a base
to give complexes of the general formula: [M(H2L)2(H2O)x]Cly The synthesized
compounds were characterized by spectroscopic methods[ I.R , UV-Vis, A.A and
H1NMR]along with melting point, chloride content and conductivity measurements. The
complexes were screend for their in vitro antibacterial activity against one strain of
staphylococcus as Gram(+) positive and one strain of pseudomonas as Gram(-) Negative,
using the agar diffusion technique.