Spectrochemical study and effect of high energatic gamma ray on copper (II) complexes

Series of copper (II) complexes of 2- phenylaminoacetyl-N-phenylhydrazine carbthioamide (H2L) has been prepared and characterized by elemental and analyses, IR, electronic spectra, magnetic moment, molar conductance measurements, thermogravimetric analyses and X-ray diffraction pattern. The IR data before and after gamma- irradiation reveal that the ligand behaves as neutral, monobasic bidentate coordination of copper ion via the carbonyl group or enolic oxygen group, NH group and thiol sulphr atom group in complex B-2. The molar conductance data reveal that the chelates are non-electrolytes. From the electronic spectra and magnetic moment data, the complexes were found to have octahedral and square planar geometrical structures. The thermal behavior of these chelates before and after gamma-irradiation induced more thermal stability after radiation. The X-ray diffraction patterns before and after gamma- irradiation suffer partial damage after irradiation. (C) 2011 Elsevier Masson SAS. All rights reserved.