Naser Shaalan, S. S. Hassan, A. A. Al-Hamdani
Dec 1, 2015
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0
Influential Citations
3
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Journal
Journal of Al-Nahrain University-Science
Abstract
New metal complexes of the ligand 2-[5-(Pyridin-2-ylmethylene)-amino] 1,3,4-thiadiazol-2-yl-phenol (L) with the metal ions Co(II), Ni(II), Cu(II) and Zn(II) were prepared in alcoholic medium. The Schiff base was condensed [2-pyridine carbxaldehyde] with [2-amino-5-(phenyl-1,3,4-oxadiazole] in alcoholic medium. Two tetradentate Schiff bases ligand were used for complexation upon two metal ions of Co2+, Ni2+, Cu2+ and Zn2+ as dineucler formula M2L2. The synthesized compound and their metal complexes were characterized by FTIR Spectroscopy, electronic spectroscopy, Elemental analysis, magnetic susceptidbility measurements, thermal analysis , 1H-NMR spectra, and mass spectra. The activation thermodynamic parameters such as ΔE*, ΔH*, ΔS* and ΔG* were calculated from the TGA curve using Coats-Red fern method. From the measurements, structures of the complexes were proposed.