Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III)
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFG |
Texto Completo: | http://repositorio.bc.ufg.br/tede/handle/tede/4919 |
Resumo: | In this work the synthesis of the heavy lanthanides and yttrium were carried out, using the direct addition of the sodium terephthalate in the respectives metallic chloride solutions. The synthesized compounds were characterized by simultaneous Thermogravimetry and differential scanning calorimetry analysis (TG-DSC), differential scanning calorimetry (DSC), Fourier Transform Infrared Spectroscopy (FTIR), thermogravimetric analyses coupled to Fourier Transform Infrared spectroscopy (TG-FTIR), EDTA complexometry and X ray powder Diffractometry. From the data, it was possible to obtain the general formula of each compound (Ln2(TFta)3.nH2O, where Ln = Tb(III), Dy(III), Ho(III), Er(III), Tm(III), Yb(III), Lu(III) and Y(III), TFta = terephthalate, and n = 4,5 (Tb, Dy and Ho), 4,0 (Er, Tm and Y), 5,0 (Yb) and 6,5 (Lu)), as well as unreported information about the thermal properties, in air atmosphere, thermal stability; molar dehydration enthalpy; main evolved gases from thermal decomposition (H2O, CO2 and CO), the coordination mode between metal and ligand and performing the comparison of the results of X -ray diffraction of the compounds synthesized by the powder method using and the single crystal obtained by hydrothermal synthesis reported in the literature. |
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Ionashiro, Elias Yukihttp://lattes.cnpq.br/5876657837077998Ionashiro, Elias YukiSiqueira, Adriano Buzutti deArruda, Andréa Fernandeshttp://lattes.cnpq.br/5331643322469852Costa, Bruna de Araújo2015-11-19T13:42:58Z2015-05-22COSTA, B. A. Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), itérbio (III), lutécio (III) e ítrio(III). 2015. 59 f. Dissertação (Mestrado em Química) - Universidade Federal de Goiás, Goiânia, 2015.http://repositorio.bc.ufg.br/tede/handle/tede/4919In this work the synthesis of the heavy lanthanides and yttrium were carried out, using the direct addition of the sodium terephthalate in the respectives metallic chloride solutions. The synthesized compounds were characterized by simultaneous Thermogravimetry and differential scanning calorimetry analysis (TG-DSC), differential scanning calorimetry (DSC), Fourier Transform Infrared Spectroscopy (FTIR), thermogravimetric analyses coupled to Fourier Transform Infrared spectroscopy (TG-FTIR), EDTA complexometry and X ray powder Diffractometry. From the data, it was possible to obtain the general formula of each compound (Ln2(TFta)3.nH2O, where Ln = Tb(III), Dy(III), Ho(III), Er(III), Tm(III), Yb(III), Lu(III) and Y(III), TFta = terephthalate, and n = 4,5 (Tb, Dy and Ho), 4,0 (Er, Tm and Y), 5,0 (Yb) and 6,5 (Lu)), as well as unreported information about the thermal properties, in air atmosphere, thermal stability; molar dehydration enthalpy; main evolved gases from thermal decomposition (H2O, CO2 and CO), the coordination mode between metal and ligand and performing the comparison of the results of X -ray diffraction of the compounds synthesized by the powder method using and the single crystal obtained by hydrothermal synthesis reported in the literature.A pesquisa na área de compostos de coordenação com ligantes à base de ácidos carboxílicos aromáticos e metais os lantanídeos e ítrio tem sido recorrente devido as suas promissoras aplicabilidades. O presente trabalho tem como objetivo realizar as sínteses dos tereftalatos de lantanídeos pesados e ítrio pelo método direto entre soluções de tereftalato de sódio e os respectivos cloretos metálicos e caracterização dos mesmos por meio das técnicas de análise termogravimétrica e calorimetria exploratória diferencial simultânea (TG-DSC), Calorimetria exploratória diferencial (DSC), Espectroscopia de Infravermelho por Transformada de Fourrier (FTIR), Complexometria por EDTA e Difratometria de raio X pelo método do pó. A partir das informações obtidas desse estudo termoanalítico detalhado, em atmosfera de ar, foi possível obter informações inéditas, como a fórmula geral Ln2(TFta)3.(H2O)2.nH2O, onde Ln corresponde aos Tb(III), Dy(III), Ho(III), Er(III), Tm(III), Yb(III), Lu(III) e Y(III), TFta o tereftalato e n= 2,5 (Tb, Dy e Ho), 2,0 (Er, Tm e Y), 3,0 (Yb) e 4,5 (Lu); estabilidade térmica; grau de hidratação dos compostos; entalpia molar média por molécula de água; indicar os principais produtos gasosos produzidos pela decomposição térmica (H2O, CO2 e CO); sugerir coordenação em ponte entre entre metal e o ligante e realizar a comparação dos resultados de difratometria de raio x dos compostos sintetizados pelo método do pó com os monocristais obtidos por síntese difusão lenta apresentados na literatura.Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2015-11-19T13:41:11Z No. of bitstreams: 2 Dissertação - Bruna de Araújo Costa - 2015.pdf: 2210564 bytes, checksum: 7b069b902e2614050b48d33e51ec848f (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-11-19T13:42:58Z (GMT) No. of bitstreams: 2 Dissertação - Bruna de Araújo Costa - 2015.pdf: 2210564 bytes, checksum: 7b069b902e2614050b48d33e51ec848f (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)Made available in DSpace on 2015-11-19T13:42:58Z (GMT). No. of bitstreams: 2 Dissertação - Bruna de Araújo Costa - 2015.pdf: 2210564 bytes, checksum: 7b069b902e2614050b48d33e51ec848f (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2015-05-22application/pdfporUniversidade Federal de GoiásPrograma de Pós-graduação em Química (IQ)UFGBrasilInstituto de Química - IQ (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessTereftalatoLantanídeos pesadosAnálise térmicaÍtrioCIENCIAS EXATAS E DA TERRA::QUIMICASíntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III)Synthesis, characterization and thermal analytical study of térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis66369392132541515860060060078260667437411972781571700325303117195reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGLICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III) |
dc.title.alternative.eng.fl_str_mv |
Synthesis, characterization and thermal analytical study of térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III) |
title |
Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III) |
spellingShingle |
Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III) Costa, Bruna de Araújo Tereftalato Lantanídeos pesados Análise térmica Ítrio CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III) |
title_full |
Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III) |
title_fullStr |
Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III) |
title_full_unstemmed |
Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III) |
title_sort |
Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), ítérbio (III), lutécio (III) e ítrio(III) |
author |
Costa, Bruna de Araújo |
author_facet |
Costa, Bruna de Araújo |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Ionashiro, Elias Yuki |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5876657837077998 |
dc.contributor.referee1.fl_str_mv |
Ionashiro, Elias Yuki |
dc.contributor.referee2.fl_str_mv |
Siqueira, Adriano Buzutti de |
dc.contributor.referee3.fl_str_mv |
Arruda, Andréa Fernandes |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/5331643322469852 |
dc.contributor.author.fl_str_mv |
Costa, Bruna de Araújo |
contributor_str_mv |
Ionashiro, Elias Yuki Ionashiro, Elias Yuki Siqueira, Adriano Buzutti de Arruda, Andréa Fernandes |
dc.subject.por.fl_str_mv |
Tereftalato Lantanídeos pesados Análise térmica Ítrio |
topic |
Tereftalato Lantanídeos pesados Análise térmica Ítrio CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
In this work the synthesis of the heavy lanthanides and yttrium were carried out, using the direct addition of the sodium terephthalate in the respectives metallic chloride solutions. The synthesized compounds were characterized by simultaneous Thermogravimetry and differential scanning calorimetry analysis (TG-DSC), differential scanning calorimetry (DSC), Fourier Transform Infrared Spectroscopy (FTIR), thermogravimetric analyses coupled to Fourier Transform Infrared spectroscopy (TG-FTIR), EDTA complexometry and X ray powder Diffractometry. From the data, it was possible to obtain the general formula of each compound (Ln2(TFta)3.nH2O, where Ln = Tb(III), Dy(III), Ho(III), Er(III), Tm(III), Yb(III), Lu(III) and Y(III), TFta = terephthalate, and n = 4,5 (Tb, Dy and Ho), 4,0 (Er, Tm and Y), 5,0 (Yb) and 6,5 (Lu)), as well as unreported information about the thermal properties, in air atmosphere, thermal stability; molar dehydration enthalpy; main evolved gases from thermal decomposition (H2O, CO2 and CO), the coordination mode between metal and ligand and performing the comparison of the results of X -ray diffraction of the compounds synthesized by the powder method using and the single crystal obtained by hydrothermal synthesis reported in the literature. |
publishDate |
2015 |
dc.date.accessioned.fl_str_mv |
2015-11-19T13:42:58Z |
dc.date.issued.fl_str_mv |
2015-05-22 |
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 |
COSTA, B. A. Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), itérbio (III), lutécio (III) e ítrio(III). 2015. 59 f. Dissertação (Mestrado em Química) - Universidade Federal de Goiás, Goiânia, 2015. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tede/4919 |
identifier_str_mv |
COSTA, B. A. Síntese, caracterização e estudo termoanalítico dos tereftalatos de térbio (III), disprósio (III), hólmio(III), érbio (III), túlio (III), itérbio (III), lutécio (III) e ítrio(III). 2015. 59 f. Dissertação (Mestrado em Química) - Universidade Federal de Goiás, Goiânia, 2015. |
url |
http://repositorio.bc.ufg.br/tede/handle/tede/4919 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.program.fl_str_mv |
663693921325415158 |
dc.relation.confidence.fl_str_mv |
600 600 600 |
dc.relation.department.fl_str_mv |
7826066743741197278 |
dc.relation.cnpq.fl_str_mv |
1571700325303117195 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.publisher.program.fl_str_mv |
Programa de Pós-graduação em Química (IQ) |
dc.publisher.initials.fl_str_mv |
UFG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Instituto de Química - IQ (RG) |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFG instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
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UFG |
institution |
UFG |
reponame_str |
Repositório Institucional da UFG |
collection |
Repositório Institucional da UFG |
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