Synthesis, Spectroscopic and Thermodynamic Studies of Metal Complexes with Schiff Bases Derived from 2-[5-(Pyridin-2-Ylmethylene)-amino] 1,3,4-Oxadiazol-2-yl-Phenol

  • Naser Shaalan Department of Chemistry, College of Science for Women, University of Baghdad, Baghdad-Iraq.
  • Sahar S Hassan Department of Chemistry, College of Science for Women, University of Baghdad, Baghdad-Iraq.
  • Abbas Ali Salih Al-Hamdani Department of Chemistry, College of Science for Women, University of Baghdad, Baghdad-Iraq.
Keywords: Schiff base, Microwave synthesis, Thermodynamic Parameters

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.



Author Biography

Abbas Ali Salih Al-Hamdani, Department of Chemistry, College of Science for Women, University of Baghdad, Baghdad-Iraq.



Published
2018-06-06
How to Cite
Shaalan, N., Hassan, S. S., & Al-Hamdani, A. A. S. (2018). Synthesis, Spectroscopic and Thermodynamic Studies of Metal Complexes with Schiff Bases Derived from 2-[5-(Pyridin-2-Ylmethylene)-amino] 1,3,4-Oxadiazol-2-yl-Phenol. Al-Nahrain Journal of Science, 18(4), 13-21. Retrieved from https://anjs.edu.iq/index.php/anjs/article/view/279
Section
Articles