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Vol. 27 No. 11 (2015): Vol 27 Issue 11

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Synthesis and Thermogravimetric Behaviour of Ni(II), Cu(II) and Zn(II) Complexes of Triazine-Salicyldamine Schiff Bases

https://doi.org/10.14233/ajchem.2015.19113
Abdulaziz Ali Alomari
Department of Chemistry, Faculty of Science and Arts in Mukwah, University of Al-Baha, Al-Mukwah 65931, Saudi Arabia

Corresponding Author(s) : Abdulaziz Ali Alomari

abomaz1389@yahoo.com

Asian Journal of Chemistry, Vol. 27 No. 11 (2015): Vol 27 Issue 11

Abstract

Synthesis, characterization and thermogravimetric behaviour of Ni(II), Cu(II) and Zn(II) complexes of Schiff bases derived from 4-phenyl-1,3,5-triazine-2,6-diamine and 5-chloro- salicylaldehyde (H2L1), 5-bromo-salicylaldehyde (H2L2) have been reported. The ligands were characterized by FT-IR, 1H and 13C NMR, UV-visible spectroscopy as well as elemental analysis. Spectral studies revealed that the ligands were acting as tetradentate chelating agents and coordinated to the metal center via deprotonated phenolate oxygen and azomethine nitrogen atoms in a 1:1 ligand to metal ratio. Thermal behaviour of the complexes has been evaluated using TGA. All complexes showed similar modes of three steps weight loss upon heating to 800 °C with gradual loss of organic and inorganic parts. The residues after heating corresponds to metal oxides, with copper complexes seemed to be the most stable and can be used in high-temperature catalytic cycles.

Keywords

Thermogravimetric analysis Schiff bases Triazine Metal complexes Catalysis
Ali Alomari, A. (2015). Synthesis and Thermogravimetric Behaviour of Ni(II), Cu(II) and Zn(II) Complexes of Triazine-Salicyldamine Schiff Bases. Asian Journal of Chemistry, 27(11), 4125–4129. https://doi.org/10.14233/ajchem.2015.19113
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