Abstract
Some new tridentate ONO and ONS Schiff base complexes of
NiL(amine)(L = Salicylidene2-aminophenol and
Salicylidene2-aminothiophenol, amine = benzylamine, morpholine,
pyrrolidine and piperidine) were synthesized and characterized by IR,
UV-vis,H-1 NMR spectroscopy and elemental analysis. The geometry of
NiL2(bzlan) determined by X-ray crystallography indicates that the
complex has planar structure and has four coordinate in the solid state.
The thermogravimmetry (TG) and differential thermoanalysis (DTA) of the
synthesized complexes were carried out in the range of 20-700 degrees C,
leading to decomposition of ONO type in two stages and of ONS type in
three stages. The ONO and ONS complexes were decomposed to NiO and NiS
respectively. Thermal decomposition of the complexes is closely the
depends upon nature of the Schiff base ligands and proceeds via first
order kinetics. (C) 2012 Elsevier B.V. All rights reserved.
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