Synthesis, thermal behavior in oxidative and pyrolysis conditions, spectroscopic and DFT studies of some alkaline earth metals p-aminobenzoate complexes using TG-DTA, DSC, PXRD and EGA (TG-FTIR) techniques

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorScience and Technology of Paraná-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de Uberlândia (UFU)-
Autor(es): dc.contributorFederal University of Catalão (UFCAT)-
Autor(es): dc.contributorFederal University of Mato Grosso-
Autor(es): dc.creatorTeixeira, José Augusto-
Autor(es): dc.creatorFernandes, Richard P.-
Autor(es): dc.creatorIsquibola, Guilherme-
Autor(es): dc.creatorGaspari, Ana P. S.-
Autor(es): dc.creatorMachado, Antonio E. H.-
Autor(es): dc.creatorCaires, Flávio J.-
Autor(es): dc.creatorIonashiro, Massao-
Data de aceite: dc.date.accessioned2025-08-21T20:05:30Z-
Data de disponibilização: dc.date.available2025-08-21T20:05:30Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.tca.2022.179184-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/234254-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/234254-
Descrição: dc.descriptionp-aminobenzoic acid is a substance widely used in several areas, such as catalysis, biomarkers, magnetic materials, luminescent materials and biological applications. p-aminobenzoate complexes with alkaline earth metal were synthesized and the thermal and pyrolysis behavior was studied using thermoanalytical and spectroscopic techniques. Based on TG/DTG-DTA and EGA results, the thermal decomposition mechanisms of the compounds were proposed under both atmospheres studied. The main gaseous products identified by EGA in both study conditions were H2O, Aniline, CO and CO2. From DSC analysis, it was possible to measure the enthalpies of dehydration and evaluate the phase transitions of the magnesium complex. FTIR data suggest that metal-ligand coordination occurs through carboxylate group by different ways. The coordination modes suggested by experimental FTIR data were supported by DFT study. The X-ray diffraction powder patterns show that the barium compound was obtained in amorphous state, while the other compounds have a crystalline structure.-
Descrição: dc.descriptionFederal Institute of Education Science and Technology of Paraná, PR-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Chemistry, SP-
Descrição: dc.descriptionFederal University of Uberlândia (UFU) Institute of Chemistry, MG-
Descrição: dc.descriptionGraduate Program in Exact and Technological Sciences Physics Institute Federal University of Catalão (UFCAT), GO-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Science, SP-
Descrição: dc.descriptionDepartment of Chemistry / ICET Federal University of Mato Grosso, MT-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Chemistry, SP-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Science, SP-
Idioma: dc.languageen-
Relação: dc.relationThermochimica Acta-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAlkaline earth metals-
Palavras-chave: dc.subjectEvolved gases-
Palavras-chave: dc.subjectp-aminobenzoate complexes-
Palavras-chave: dc.subjectPyrolysis-
Palavras-chave: dc.subjectThermal behavior-
Palavras-chave: dc.subjectThermal decomposition mechanism-
Título: dc.titleSynthesis, thermal behavior in oxidative and pyrolysis conditions, spectroscopic and DFT studies of some alkaline earth metals p-aminobenzoate complexes using TG-DTA, DSC, PXRD and EGA (TG-FTIR) techniques-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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