Abstract
This research include synthesis of sciff base ligand N, N – bis (4- hydroxy benzaldehyde) p- phenylene diimine. The ligand was synthesized from reaction between p- phenylene diamine with 4-hydroxy benzalehyde .
The complexes were product of reaction of the ligand with metal salts which have the general formula [ M (L )2 (Cl )2 ] When M = Co+2 , Fe+2
But for Chromium complex the chemical formula is [ M(L)2 (Cl)2 ]Cl M = Cr+3
L = N,N – bis ( 4- hydroxyl benzaldehyde ) p- phenylene diimine That means the metal to ligand ratio is ( 1 : 2 ). These complexes were characterized by technique of Infrared , UV-visible , Molar conductivity , Magnetic sensitivity & Atomic absorption .these studies were signed that the ligand is bidentate and coordinate by nitrogen atoms of azomethine groups , It was found that the have octahedral geometry.