Linear optical properties of a New Azo dye derived from Cefotaxime

Abstract EN

New azo dye (AZ) compound derived from (6R,7R)-3- [( acetyloxy) methyl] -7 - [ [(Z)-2-(2-aminothiazol-4-yl)-2- (methoxyimino) acetyl]amino] -8 - oxo -5- thia-1- azabicyclo[4.2.0]-oct-2-ene-2-carboxylate sodium (Cefotaxime) with resorcinol, has been prepared .

The Synthesis of dye was characterized using FT-IR.

Thin film of azo dye was prepared by spin coating method.

The absorption spectra shows to major absorption band the first at the wavelength 323nm and the second at the wavelength 455nm.

Absorption coefficients (α), refractive index (n), extinction coefficient (k) and optical band gap have been all calculated.

Both refractive index( n) and extinction coefficient (k) decrease with increase of the wavelength.