Photo-degradation Study for Some 4-aminoantipyrine derivatives by used (Cs-137) as Gamma-Ray Source

Abstract

The compounds {4-Benzylidene-amino)-1,5-dimethyl-2-phenyl-1,2-dihydro-pyrazol-3-one} , {4-[(4-Hydroxy-benzylidene)-amino]- 1,5-dimethyl-2-phenyl-1,2-dihydro-pyrazol-3-one} ,and {4-[(2-Hydroxy-benzylidene)-amino]- 1,5-dimethyl-2-phenyl-1,2-dihydro-pyrazol-3-one}were prepared as [4-aminoantipyrine] derivatives by condensation reaction . These compounds were characterized by FTIR spectra , UV.-Vis. Spectra, and melting point measurement .The bond constant (K) for active group that characterized by IR spectrum was calculated .Also ,solvent effect on UV.-Vis. Spectrum was studied which appeared the prepared solution compounds were influenced by solvent polarity .Photo study for compounds was carry out by used Cs-137 as Gamma Ray source for (24 hour) . IR spectra and UV.-Vis. Spectra after irradiation didn’t appear clear bands for compounds spectra that refer all compounds were gotten a photo-degradation because of they absorbed Gamma Ray. The mean external exposure [ X(R)] , the dose rate in air [ Daire (rad)],and the dose rate in compound [Dcompound (rad)] were calculated .