SYNTHESIS AND THERMAL BEHAVIOR OF Ni(II), Cu(II), Co(II) AND Fe(III) METAL COMPLEXES WITH ONO TYPE SCHIFF BASE LIGAND.

This paper presents a simple coordinating behavior of Schiff base ligand with Ni(II), Cu(II), Co(II) and Fe(III) ions. A Schiff base ligand;1-(N-ortho-hydroxyacetophenimine)-ethan-2-ol was reported in our previous literature, synthesized by the condensation of 2-hydroxyacetophenone and ethanolamine. Various metal ions such as Cu(II), Co(II), Ni(II) and Fe(III) were reacted with this receptor in 1:2 molar ratio to form their corresponding complexes. These complexes were characterized by elemental analysis, powder X-ray diffraction, spectroscopic methods (FT-IR, UV-Vis, Mass spectrometry, conductance measurements) and thermogravimetric analysis, which confirmed the formation of [Cu(L)2(H2O)2]Cl2, [Co(L)2(H2O)2](NO3)2,[Ni(L)(NO3)](NO3) and [Fe(L)2]Cl3 complexes (where L is Schiff base ligand). [ABSTRACT FROM AUTHOR]