Abstract
The thermal stability of some 2-phenyl-3-aryhmino-3 H-indole derivatives was studied by simultaneous TG-DSC measurements and kinetic parameters were determined using the dynamic TG technique. Gas chromatography-mass spectrometry and UV techniques were used to differentiate the products of the thermal decomposition. No correlation between the electron-donor and electron-withdrawing power of the substituent groups and the thermal behaviour of the compounds was found. Some compounds undergo decomposition during the liquid-gas transition, which is related to the decreasing influence of the substituent groups on the intermolecular and intramolecular bonds of the molecules.
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