Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFMA |
Texto Completo: | http://tedebc.ufma.br:8080/jspui/handle/tede/1344 |
Resumo: | Amino acids complex of transition metals has increasingly attracted the interest of researchers due to their wide range of physical properties for understanding metal-amino acid interactions. In this work [Bis(L-Alaninato)Diaqua] Nickel(II) Dihydrate [Ni(C3H6O2N)2(H2O)2.2H2O] crystals were obtained by slow evaporation method using 0,1 mol/L of NiCl2.6H2O, 0,2 mol/L of L-alanine and NaOH. Rietveld refinement of X-ray data confirmed the structure. The structural properties of these crystals were studied by X-ray diffraction (XRD) in the temperature range from 25 to 150 °C. Thermal analysis experiments were performed by TG/DTA between 25 and 500 °C, and by DSC between 25 and 250 °C. The results obtained by TG/DTA indicate the loss of water molecules by [Bis(L-Alaninato)Diaqua] Nickel(II) Dihydrate crystals at temperatures of 64 and 117 °C, which was also confirmed by the results obtained by DSC. The X-ray diffraction pattern show new peaks, in temperatures around 55 and 110 ° C, indicating to loss of water by crystals. The transformation is irreversible because the diffraction pattern obtained after the sample return to the room temperature differs from that obtained before heating of the sample. The vibrational properties were analyzed by Raman spectroscopy between 25 and 185 °C. The Raman spectroscopy measurements as a function of the temperature show the loss of water molecules. The spectra at high temperatures resemble the spectrum at room temperature, showing that the crystal undergoes phase transformation, but probably do not change the crystal symmetry. |
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MENEZES, Alan Silva de642.782.713-87SANTOS, Adenilson Oliveira dos016.759.989-57039.574.653-11http://lattes.cnpq.br/8605813851309766BALDEZ, Thays Silva2017-05-05T20:04:11Z2016-07-06BALDEZ, Thays Silva. Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado. 2016. 80 f. Dissertação (Programa de Pós-Graduação em Ciência dos Materiais) - Universidade Federal do Maranhão, Imperatriz, 2016 .http://tedebc.ufma.br:8080/jspui/handle/tede/1344Amino acids complex of transition metals has increasingly attracted the interest of researchers due to their wide range of physical properties for understanding metal-amino acid interactions. In this work [Bis(L-Alaninato)Diaqua] Nickel(II) Dihydrate [Ni(C3H6O2N)2(H2O)2.2H2O] crystals were obtained by slow evaporation method using 0,1 mol/L of NiCl2.6H2O, 0,2 mol/L of L-alanine and NaOH. Rietveld refinement of X-ray data confirmed the structure. The structural properties of these crystals were studied by X-ray diffraction (XRD) in the temperature range from 25 to 150 °C. Thermal analysis experiments were performed by TG/DTA between 25 and 500 °C, and by DSC between 25 and 250 °C. The results obtained by TG/DTA indicate the loss of water molecules by [Bis(L-Alaninato)Diaqua] Nickel(II) Dihydrate crystals at temperatures of 64 and 117 °C, which was also confirmed by the results obtained by DSC. The X-ray diffraction pattern show new peaks, in temperatures around 55 and 110 ° C, indicating to loss of water by crystals. The transformation is irreversible because the diffraction pattern obtained after the sample return to the room temperature differs from that obtained before heating of the sample. The vibrational properties were analyzed by Raman spectroscopy between 25 and 185 °C. The Raman spectroscopy measurements as a function of the temperature show the loss of water molecules. The spectra at high temperatures resemble the spectrum at room temperature, showing that the crystal undergoes phase transformation, but probably do not change the crystal symmetry.Aminoácidos complexados com metais de transição têm atraído cada vez mais o interesse de pesquisadores devido à grande variedade de propriedades físicas que eles apresentam para o entendimento das interações metal-aminoácido. Neste trabalho, cristais de Bis(L-alaninato) de Níquel (II) di-hidratado [Ni(C3H6O2N)2(H2O)2.2H2O] foram obtidos por meio da evaporação lenta do solvente de uma solução saturada contendo 0,1 mol/L de NiCl2.6H2O, 0,2 mol/L de L-alanina e NaOH. Após a obtenção da amostra, a confirmação da estrutura deu-se por refinamento de Rietveld. As propriedades estruturais desses cristais foram estudadas por medidas de difração de raios-X em função da temperatura na faixa de 25 a 150 °C. Experimentos de análise térmica foram realizados por TG/DTA entre 25 e 500 °C e por DSC entre 25 e 250 °C. Os resultados obtidos por TG/DTA evidenciam a saída das moléculas de água do cristal de Bis(L-alaninato) de Níquel (II) di-hidratado nas temperaturas de 64,51 e 117,25 °C, que também foi confirmada pelos resultados obtidos por DSC. O padrão de difração de raios-X mostrou desaparecimento e o surgimento de novos picos no difratograma, para temperaturas próximas a 55 °C e 110 °C, indicando a saída de água do cristal. Essa transformação é irreversível, pois o padrão de difração obtido após a amostra retornar à temperatura ambiente difere significativamente daquele obtido antes do aquecimento. As propriedades vibracionais foram analisadas por Espectroscopia Raman entre 25 e 185 °C. As medidas dos espectros Raman em função da temperatura evidenciam a saída das moléculas de água. O espectro à alta temperatura se assemelha ao espectro à temperatura ambiente, mostrando que o cristal sofre transformação de fase, mas provavelmente permanece com a mesma simetria cristalina.Submitted by Rosivalda Pereira (mrs.pereira@ufma.br) on 2017-05-05T20:04:11Z No. of bitstreams: 1 ThaysSilvaBaldez.pdf: 2095828 bytes, checksum: 9de3dacfb0850842d669bc07ee7407eb (MD5)Made available in DSpace on 2017-05-05T20:04:11Z (GMT). No. of bitstreams: 1 ThaysSilvaBaldez.pdf: 2095828 bytes, checksum: 9de3dacfb0850842d669bc07ee7407eb (MD5) Previous issue date: 2016-07-06Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)application/pdfporUniversidade Federal do MaranhãoPROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA DOS MATERIAIS/CCSSTUFMABrasilCOORDENAÇÃO DO CURSO DE CIENCIA E TECNOLOGIA - IMPERATRIZ/CCSSTComplexo de aminoácidoDifração de raios-XEspectroscopia RamanEstabilidade térmicaAmino acid complexX-ray diffractionRaman spectroscopyThermal stabilityFísica da Matéria CondensadaEstudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratadoSTRUCTURAL, THERMAL AND VIBRATIONAL STUDY OF BIS (L-ALANINATE) CRYSTAL OF NICKEL (II) DIHYDRATEinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFMAinstname:Universidade Federal do Maranhão (UFMA)instacron:UFMAORIGINALThaysSilvaBaldez.pdfThaysSilvaBaldez.pdfapplication/pdf2095828http://tedebc.ufma.br:8080/bitstream/tede/1344/2/ThaysSilvaBaldez.pdf9de3dacfb0850842d669bc07ee7407ebMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82255http://tedebc.ufma.br:8080/bitstream/tede/1344/1/license.txt97eeade1fce43278e63fe063657f8083MD51tede/13442023-01-18 14:45:35.366oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttps://tedebc.ufma.br/jspui/PUBhttp://tedebc.ufma.br:8080/oai/requestrepositorio@ufma.br||repositorio@ufma.bropendoar:21312023-01-18T17:45:35Biblioteca Digital de Teses e Dissertações da UFMA - Universidade Federal do Maranhão (UFMA)false |
dc.title.por.fl_str_mv |
Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado |
dc.title.alternative.por.fl_str_mv |
STRUCTURAL, THERMAL AND VIBRATIONAL STUDY OF BIS (L-ALANINATE) CRYSTAL OF NICKEL (II) DIHYDRATE |
title |
Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado |
spellingShingle |
Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado BALDEZ, Thays Silva Complexo de aminoácido Difração de raios-X Espectroscopia Raman Estabilidade térmica Amino acid complex X-ray diffraction Raman spectroscopy Thermal stability Física da Matéria Condensada |
title_short |
Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado |
title_full |
Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado |
title_fullStr |
Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado |
title_full_unstemmed |
Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado |
title_sort |
Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado |
author |
BALDEZ, Thays Silva |
author_facet |
BALDEZ, Thays Silva |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
MENEZES, Alan Silva de |
dc.contributor.advisor1ID.fl_str_mv |
642.782.713-87 |
dc.contributor.advisor-co1.fl_str_mv |
SANTOS, Adenilson Oliveira dos |
dc.contributor.advisor-co1ID.fl_str_mv |
016.759.989-57 |
dc.contributor.authorID.fl_str_mv |
039.574.653-11 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/8605813851309766 |
dc.contributor.author.fl_str_mv |
BALDEZ, Thays Silva |
contributor_str_mv |
MENEZES, Alan Silva de SANTOS, Adenilson Oliveira dos |
dc.subject.por.fl_str_mv |
Complexo de aminoácido Difração de raios-X Espectroscopia Raman Estabilidade térmica |
topic |
Complexo de aminoácido Difração de raios-X Espectroscopia Raman Estabilidade térmica Amino acid complex X-ray diffraction Raman spectroscopy Thermal stability Física da Matéria Condensada |
dc.subject.eng.fl_str_mv |
Amino acid complex X-ray diffraction Raman spectroscopy Thermal stability |
dc.subject.cnpq.fl_str_mv |
Física da Matéria Condensada |
description |
Amino acids complex of transition metals has increasingly attracted the interest of researchers due to their wide range of physical properties for understanding metal-amino acid interactions. In this work [Bis(L-Alaninato)Diaqua] Nickel(II) Dihydrate [Ni(C3H6O2N)2(H2O)2.2H2O] crystals were obtained by slow evaporation method using 0,1 mol/L of NiCl2.6H2O, 0,2 mol/L of L-alanine and NaOH. Rietveld refinement of X-ray data confirmed the structure. The structural properties of these crystals were studied by X-ray diffraction (XRD) in the temperature range from 25 to 150 °C. Thermal analysis experiments were performed by TG/DTA between 25 and 500 °C, and by DSC between 25 and 250 °C. The results obtained by TG/DTA indicate the loss of water molecules by [Bis(L-Alaninato)Diaqua] Nickel(II) Dihydrate crystals at temperatures of 64 and 117 °C, which was also confirmed by the results obtained by DSC. The X-ray diffraction pattern show new peaks, in temperatures around 55 and 110 ° C, indicating to loss of water by crystals. The transformation is irreversible because the diffraction pattern obtained after the sample return to the room temperature differs from that obtained before heating of the sample. The vibrational properties were analyzed by Raman spectroscopy between 25 and 185 °C. The Raman spectroscopy measurements as a function of the temperature show the loss of water molecules. The spectra at high temperatures resemble the spectrum at room temperature, showing that the crystal undergoes phase transformation, but probably do not change the crystal symmetry. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-07-06 |
dc.date.accessioned.fl_str_mv |
2017-05-05T20:04:11Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
BALDEZ, Thays Silva. Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado. 2016. 80 f. Dissertação (Programa de Pós-Graduação em Ciência dos Materiais) - Universidade Federal do Maranhão, Imperatriz, 2016 . |
dc.identifier.uri.fl_str_mv |
http://tedebc.ufma.br:8080/jspui/handle/tede/1344 |
identifier_str_mv |
BALDEZ, Thays Silva. Estudo estrutural, térmico e vibracional do crista de Bis (L-alaninato) de Níquel (II) di-hidratado. 2016. 80 f. Dissertação (Programa de Pós-Graduação em Ciência dos Materiais) - Universidade Federal do Maranhão, Imperatriz, 2016 . |
url |
http://tedebc.ufma.br:8080/jspui/handle/tede/1344 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal do Maranhão |
dc.publisher.program.fl_str_mv |
PROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA DOS MATERIAIS/CCSST |
dc.publisher.initials.fl_str_mv |
UFMA |
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Brasil |
dc.publisher.department.fl_str_mv |
COORDENAÇÃO DO CURSO DE CIENCIA E TECNOLOGIA - IMPERATRIZ/CCSST |
publisher.none.fl_str_mv |
Universidade Federal do Maranhão |
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