Synthesis, characterization and thermal behaviour of solid- state compounds of 4-methoxybenzoate with lanthanum (III) and trivalent lighter lanthanides

Abstract

Solid-state M-4-MeO-Bz compounds, where M stands for trivalent La, Ce, Pr, Nd and Sm and 4-MeO-Bz is 4-methoxybenzoate, have been synthesized. Simultaneous thermogravimetry and differential thermal analysis (TG-DTA), differential scanning calorimetry (DSC), X-ray powder diffractometry, infrared spectroscopy and complexometry were used to characterize and to study the thermal behaviour of these compounds. The results led to information about the composition, dehydration, polymorphic trans- formation, ligand’s denticity, thermal behaviour and thermal decomposition of the isolated compounds.