Synthesis of 1-[N-(5-chloro-2-hydroxyphenyl)imino]methyl}-2-naphthol Schiff base: characterization and thermal behavior assessment of its complexes with some metal ions

A. Bagheri, N. Dastsang and K.

Abstract

New Ni(II), Cu(II) and Zn(II) complexes have been synthesized by reaction of a terdentate Schiff base ligand 1-[N- (5-chloro-2-hydroxyphenyl)imino]methyl}-2-naphthol (H2L) with metal(II) acetates. The synthesized complexes have been characterized by elemental analyses, IR, UV-Vis and 1H NMR spectroscopy. The thermal behaviors of complexes have been investigated by TGA and DTA. In all complexes the Schiff base acts as a terdentate ligand and coordinates to the metal via two phenolic oxygen and azomethine nitrogen.