Synthesis, characterization and thermal behaviour of heavy trivalent lanthanide malonates

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Published: Dec 27, 2010
DOI: https://doi.org/10.26850/1678-4618eqj.v35.4.2010.p93-100
Keywords:
heavy lanthanides, malonate, thermal behaviour

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José Roberto Locatelli
Academia da Força Aérea, Pirassununga, Brasil.
Cláudio Teodoro de Carvalho
Universidade Federal da Grande Dourados, Dourados, Brasil.
Flávio Junior Caires
Universidade Estadual Paulista, Instituto de Química, Araraquara, Brasil.
Massao Ionashiro
Universidade Estadual Paulista, Instituto de Química, Araraquara, Brasil.
https://orcid.org/0000-0003-2980-5841

Abstract

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.

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How to Cite
Locatelli, J. R., de Carvalho, C. T., Caires, F. J., & Ionashiro, M. (2010). Synthesis, characterization and thermal behaviour of heavy trivalent lanthanide malonates. Eclética Química, 35(4), 93–100. https://doi.org/10.26850/1678-4618eqj.v35.4.2010.p93-100
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Vol. 35 No. 4 (2010): Eclética Química
Section
Original articles
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