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Thermal behavior, spectroscopic studies and free radical scavenging potential of some mefenamate trivalent lanthanides (Sm, Eu, Gd, Tb and Dy)

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dc.contributor.authorCampos, Francisco X. [UNESP]
dc.contributor.authorNascimento, André L.C.S. [UNESP]
dc.contributor.authorColman, Tiago A.D. [UNESP]
dc.contributor.authorGálico, Diogo A.
dc.contributor.authorCarvalho, Ana C.S.
dc.contributor.authorCaires, Flávio J. [UNESP]
dc.contributor.authorSiqueira, Adriano B.
dc.contributor.authorIonashiro, Massao [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionCEP do Leste
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUFMT – Campus Cuiabá
dc.date.accessioned2018-12-11T17:31:49Z
dc.date.available2018-12-11T17:31:49Z
dc.date.issued2017-05-10
dc.description.abstractLanthanide Mefenamate compounds were prepared in solid state. TG-DSC coupled to FTIR, elemental analysis, complexometry with EDTA, X-ray powder diffractometry, evaluation of scavenging free radical activity with DPPH (2,2-diphenyl-1-picryl-hydrazine), and a complete spectroscopic study in the ultraviolet, visible, near-, and middle-infrared regions were realized to obtain some physicochemical properties of the synthesized compounds. The thermal stability, minimum formula, thermal behavior and intermediate compounds were indicated by thermoanalytical results. Furthermore, vibrational spectroscopy data suggests that the complexes are binuclear and two modes of coordination are presented. The DR spectra could be reveal the presence of a large ligand-to-metal charge transfer band in the europium mefenamate. This compound also indicated the higher antioxidant activity with DPPH (77.03% at 200 μg L−1).en
dc.description.affiliationInstituto de Química UNESP – Campus Araraquara
dc.description.affiliationInstituto Federal de Educação Ciência e Tecnologia de Mato Grosso IFMT – Campus Primavera do Leste CEP do Leste
dc.description.affiliationInstituto de Química UNICAMP – Universidade Estadual de Campinas
dc.description.affiliationUniversidade Federal de Mato Grosso UFMT – Campus Cuiabá
dc.description.affiliationFaculdade de Ciências UNESP – Campus Bauru
dc.description.affiliationUnespInstituto de Química UNESP – Campus Araraquara
dc.description.affiliationUnespFaculdade de Ciências UNESP – Campus Bauru
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent73-82
dc.identifierhttp://dx.doi.org/10.1016/j.tca.2017.03.002
dc.identifier.citationThermochimica Acta, v. 651, p. 73-82.
dc.identifier.doi10.1016/j.tca.2017.03.002
dc.identifier.file2-s2.0-85015677370.pdf
dc.identifier.issn0040-6031
dc.identifier.lattes8460531302083773
dc.identifier.scopus2-s2.0-85015677370
dc.identifier.urihttp://hdl.handle.net/11449/178722
dc.language.isoeng
dc.relation.ispartofThermochimica Acta
dc.relation.ispartofsjr0,605
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectDPPH
dc.subjectEGA
dc.subjectLanthanides
dc.subjectMefenamate
dc.subjectSpectroscopy
dc.subjectThermal analysis
dc.titleThermal behavior, spectroscopic studies and free radical scavenging potential of some mefenamate trivalent lanthanides (Sm, Eu, Gd, Tb and Dy)en
dc.typeArtigo
dspace.entity.typePublication
unesp.author.lattes8460531302083773
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentQuímica Analítica - IQARpt

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