Artículos de revistas
Synthesis, characterization and thermal behaviour of heavy trivalent lanthanide malonates
Fecha
2010-01-01Registro en:
Ecletica Quimica, v. 35, n. 4, p. 93-100, 2010.
1678-4618
0100-4670
10.26850/1678-4618EQJ.V35.4.2010.P93-100
2-s2.0-85116747560
Autor
Academia da Força Aérea (AFA)
Universidade Federal da Grande Dourados
Universidade Estadual Paulista (UNESP)
Institución
Resumen
Solid-state Ln-L compounds, where Ln stands for heavy trivalent lanthanides (Tb-Lu) and L is malonate, have been synthesized. Simultaneous thermogravimetry and differential thermal analysis (TG-DTA), differential scanning calorimetry (DSC), X-ray powder diffractometry, infrared spectroscopy, TG-FTIR system, elemental analysis and complexometry were used to characterize and to study the thermal behaviour of these compounds. The dehydration of the compounds begins at 303 K and the anhydrous compounds are stable up to 548 K. The results also provided information concerning the ligand’s denticity, thermal behaviour and identification of some gaseous products evolved during the thermal decomposition of these compounds.