Abstract

Isolation and Spectroscopic Characterization of some Schiff Base Complexes

Author(s): M.M. El-ajaily1*, A.M. Hamil2, M. Abdalkarem3andM.Himmet

FiveSchiff base complexes of Co(II), Ni(II), Cu(II), Cr(III) and La(III) ions with a Schiff base derivedfromthe reaction of2-hydroxyacetophenone and ethylenediamine were isolated and characterized by several physi-ochemical analyses, such as, CHN elemental analysis, molar conductivity, thermogravimetric analysis, spectroscopic techniques(IR, electronic and e.p.r). The CHN elemental analyses showed the formation ofthe complexes. The molar conductivity measurements revealed the existence of non-electrolytic nature. The thermogravimetric analysis data exhibited the presence of water molecules with different ratios. The infrared spectra showed the complexation sites which bonded to the metal ions. Theelectronic spectra suggested the geometrical structures of the complexes. The electron paramagnetic resonance spectra of the complexes confirmed the data which obtained from previous analyses

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