Authors : Taghreed M. Musa, Anaam M. Rasheed, Sinan M. AL-Bayati, Wessal M. Khamis and Bayader F. Abbas
Abstract: The tridentate Schiff base ligands containing donor ONO were prepared by the reaction of 2-Furaldehyde and urea or thiourea with ethyl acetoacetate to product pyrimidine derivatives (1a, 1b) which upon treatment with hydrazine afforded the hydrazide derivatives (2a, 2b) the reaction of (2a, ab) with 3-acetyl coumarin obtained novel Schiff base Ligands (L1 , L2 ) in good yield. The Ligands (L1 , L2 ) were characterized by elemental analysis (C.H.N.S), FT-IR, Uv spectroscopy, HNMR and mass spectral analysis. Complexes of Co(II), Ni(II), Cu(II) and Cd(II) with the novel Schiff base ligands have been prepared. The prepared complexes were identified and their structural geometries were suggested by using elemental analysis (C.H.N.S), FT-IR, UV-Vis spectroscopy and flame atomic absorption technique in additionmagnetic susceptibility, conductivity measurements and thermal analysis TG-DSC. The results suggest that the Schiff base Ligands (L1 , L2 ) coordinate with their tridentate O, N, O donors derived from carbonylamide and azomethine nitrogen and carbonyl oxygen atom on the coumarin ring.
Taghreed M. Musa, Anaam M. Rasheed, Sinan M. AL-Bayati, Wessal M. Khamis and Bayader F. Abbas, 2019. Synthesis, Characterization and Structural Studies of Co(II), Ni(II), Cu(II) and Cd(II) Complexes of Hydrazone Schiff Base Ligands Pyrimidine Derivative. Journal of Engineering and Applied Sciences, 14: 2418-2430.