Synthesis and Spectroscopic Study of Metal Complexes with New Schiff Base Derived from 2-acetylpyridine and Methionine Amino Acid
DOI:
https://doi.org/10.23851/mjs.v27i4.24Keywords:
Schiff bases of L-methionine, transition metal complexes, acetyl pyridine chelates.Abstract
In this research new tridentate Schiff base ligand (S)-4-(methylthio)-2-((1-(pyridin-2-yl)ethylidene)amino) butanoic acid (HL), have been prepared from condensation of (2-acetylpyridine) with methionine amino acid . A coordinated complexes of manganese (II), cobalt(II), nickel(II), copper(II) and zinc(II) have also been prepared. The prepared ligand and its complexes characterized depending upon (FTIR &Uv-Vis) spectroscopies, elemental microanalysis (C.H.N.S and M) ,(1H and13C) N.M.R spectroscopy, mass spectrum, flame atomic absorption, magnetic measurements and molar conductance. The results of different studies proved that new Schiff base ligand acts as a tridentate ONN donor in all the prepared complexes, as well as the results provided that the geometry of all prepared complexes was octahedral with (1:2) (M:L) ration , except Zn(II) complex which obtained tetrahedral geometry with (1:1) (M:L) ratio.Downloads
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