Thermal and spectroscopic studies on solid ibuprofen complexes of lighter trivalent lanthanides

Autor(es)

Galico, D. A. ^[1] ; Holanda, B. B. C. ^[1] ; Guerra, R. B. ^[1] ; Legendre, A. O. ^[1] ; Rinaldo, D. ^[1] ; Treu-Filho, O. ^[2] ; Bannach, G. ^[1]

Afiliação do(s) autor(es)

^[1] UNSEP Univ Estadual Paulista, Fac Ciancias, Dept Quim, BR-17033260 Sao Paulo - Brazil

^[2] UNSEP Univ Estadual Paulista, Inst Quim, BR-14800900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Thermochimica Acta; v. 575, p. 226-232, JAN 10 2014.
• Citações Web of Science: 13

Resumo

Solid-state compounds of general formula Ln(L)(3), in which Lis ibuprofen and Ln stands for trivalent La, Ce, Pr, Nd, Sm and Eu, have been synthesized. Simultaneous thermogravimetry and differential thermal analysis (TG-DTA), X-ray powder diffractometry (DRX), complexometry, Fourier-transformed infrared spectroscopy (FTIR) and thermogravimetry coupled to Fourier-transformed infrared spectroscopy (TG-FTIR) were used to characterize these compounds. The results provided information concerning the chemical composition, dehydration, coordination modes of the ligands, crystallinity of the samples, thermal behavior and thermal decomposition of the compounds. The theoretical and experimental spectroscopic studies suggest that ibuprofen coordinates through the carboxylate group as a chelating ligand. (C) 2013 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 12/21450-1 - Estudos termoanalíticos, síntese e caracterização dos co-cristais sólidos de cetoprofeno com alguns co-formadores
• Beneficiário: Gilbert Bannach
• Modalidade de apoio: Auxílio à Pesquisa - Regular