Synthesis and Spectral Properties of some new derivatives of Luminol azo dyes

Abstract

The thesis involves two parts :

The first partincluded synthesis eight new Azodyes , derived of  Luminol    L₁ = 5- [(phthalyl hydrazide) azo]-6-amino indzole,  L₂ 2- [(phthaly hydrazide) azo] phenylephrine,  L₃ = 3-[( phthalyihydrazide)azo]-2-Hydroxy indole. have been described by C.H.N. and Visible spectroscopic spectra , The functional groups were characterized by  I.R. technique. Acid – Base properties were also studied spectrophotometrically , using buffer solutions of pH values of  ( 0.67 – 12 ) in the visible region.

The second part of the study concern with the ability of  azo dye ( L₂) for forming complex with, Ni(II). From calibration curve of  L₂ complex : Sandell sensitivity (8.19x10^-3) cm^-2, Detection limit 0.0674µg ml^-1, ,Standard devation 0.004432, Correlation coefficient 0.9965, molar absorbitivity 7169×10^-4 L.mol^-1.cm^-1  , specific absorbtivity 0.1221 ml.g^-1.cm^-1  and obeyness of Beer's law region was determined for complex, ppm , and up to 0-14 ppm.