Synthesis and Characterization of New Polymeric Chelates Derived from Modified Amberlite IR P69 Resin with Cr(III),Co(II),Ni(II) and Cu(II) Ions.

Abstract

The Amberlite IR P69 was modified, in a two steps process with new Schiff base (HL) derived from 2-picolyl amine and 2-mercapto-4-methyl-benzyaldehyde. The new modified resin and its polymeric chelates with Cr (III), Co,Ni and Cu (II) have been isolated in the solid states and fully characterized on the basis of H, 13 C NMR,FTIR and UV-Visible spectroscopy. Furthermore the magnetic moments and molar conductance of their solutions in DMSO were recorded to investigate the stereo chemical structures of the prepared metal polymers. The results obtained from elemental analyses and the spectral measurements have deduced the coordination of nitrogen and sulphur atoms of Schiff base moiety to Amberlite IR P69 to the selected metal ions, as well as these data in communicated with thermal and magnetic susceptibilities measurements have confirmed the thermal stability and octahedral geometries for Cr III complex, tetrahedral symmetry for Co IIandsqure planner for NiII and Cu(II )polymeric metal chelates.