Physico-chemical characterization of solid state reaction between terephtalaldehyde and p-aminophenol

Abstract

The aim of this work was to investigate the possibilities of the solvent free synthesis of Schiff base (azomethyne) from terephthalaldehyde and p-aminophenol. The pure compounds and the reaction product were studied by differential scanning calorimetry (DSC), FTIR spectroscopy, UV-Vis spectroscopy and adiabatic combustion calorimetry. The structure of the reaction product was determined by FTIR spectroscopy. Spectral studies have shown that the reaction product is formed in a single stage. The standard enthalpy of reaction was obtained from heat of combustion of reactants and products and their value shows that the reaction is exothermic.