Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II)
Ano de defesa: | 2013 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Química
|
Departamento: |
Química
|
País: |
BR
|
Palavras-chave em Português: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/10567 |
Resumo: | In this study eight novel compounds were synthesized and characterized from pre-ligands pheylseleninic acid 1, 4-t-butiphenyilseleninic acid 2, 4-methylphenyilseninic acid 3 and 4-clorophenylseleninic acid 4. The ability of each compound in the process of reversibility of hydration was studied with emphasis on their properties and structural characterization by infrared spectroscopy, single-crystal x-ray diffraction, powder x-ray diffraction, elemental analysis and thermogravimetric analysis. The reactions were carried out ammonium salts of seleninics acids and metal salt Co(II). Hydrated complexes obtained single crystals suitable for x-ray diffraction, were obtained by hydrothermal synthesis reactions the complexes 3b and 4b show molecular compounds with the formula [Co (OH2)4(O2SeC6H4X)2], x = CH3 3B, and x= Cl 4B, dimensional form complex networks through hydrogen bonds and are isostructural. 1A and 2B of complex structures were determined by powder x-ray diffraction. Dehydration process of complexes 1A, 2B, 3B and 4B, at a temperature of 140 °C about 2 hours in argon atmosphere, the obtained coordination polymers: phyllo poli [Co(O2SeC4H5)2] 1C, phyllo poli [Co(O2SeC6H4t-But)2]2C, phyllo poli [Co(O2SeC6H4Me)2] 3C e phyllo poli [Co(O2SeC6H4Cl)2] 4C. The dehydrated complex (1C, 2C, 3C and 4C), were stored in a humid environment (84% RH). After five days it was possible the realization of rehydration of each complex 1A', 2B' and 3B' to their original products. The reversibility 4A' occurs to a lesser extent when compared with your original product Analyses thermogravimetric, infrared spectroscopy, scanning electron microscopy, elemental analysis and melting point for all complex hydrated, dehydrated and rehydrated. Proving beyond purity, the changes that occur in each phase obtained in complex hydrated, dehydrated and rehydrated. |
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2017-05-112017-05-112013-08-30BARBA, Catilene Dalla. Reversible hydration of complex for-replaced fenilseleninatos cobalt(II). 2013. 59 f. Dissertação (Mestrado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2013.http://repositorio.ufsm.br/handle/1/10567In this study eight novel compounds were synthesized and characterized from pre-ligands pheylseleninic acid 1, 4-t-butiphenyilseleninic acid 2, 4-methylphenyilseninic acid 3 and 4-clorophenylseleninic acid 4. The ability of each compound in the process of reversibility of hydration was studied with emphasis on their properties and structural characterization by infrared spectroscopy, single-crystal x-ray diffraction, powder x-ray diffraction, elemental analysis and thermogravimetric analysis. The reactions were carried out ammonium salts of seleninics acids and metal salt Co(II). Hydrated complexes obtained single crystals suitable for x-ray diffraction, were obtained by hydrothermal synthesis reactions the complexes 3b and 4b show molecular compounds with the formula [Co (OH2)4(O2SeC6H4X)2], x = CH3 3B, and x= Cl 4B, dimensional form complex networks through hydrogen bonds and are isostructural. 1A and 2B of complex structures were determined by powder x-ray diffraction. Dehydration process of complexes 1A, 2B, 3B and 4B, at a temperature of 140 °C about 2 hours in argon atmosphere, the obtained coordination polymers: phyllo poli [Co(O2SeC4H5)2] 1C, phyllo poli [Co(O2SeC6H4t-But)2]2C, phyllo poli [Co(O2SeC6H4Me)2] 3C e phyllo poli [Co(O2SeC6H4Cl)2] 4C. The dehydrated complex (1C, 2C, 3C and 4C), were stored in a humid environment (84% RH). After five days it was possible the realization of rehydration of each complex 1A', 2B' and 3B' to their original products. The reversibility 4A' occurs to a lesser extent when compared with your original product Analyses thermogravimetric, infrared spectroscopy, scanning electron microscopy, elemental analysis and melting point for all complex hydrated, dehydrated and rehydrated. Proving beyond purity, the changes that occur in each phase obtained in complex hydrated, dehydrated and rehydrated.Neste trabalho oito novos complexos foram sintetizados e caracterizados utilizando os pré-ligantes ácido fenilselenínico 1, ácido 4-terc-butilfenilselenínico 2, ácido 4-metilfenilselenínico 3 e ácido 4-clorofenilselenínico 4. O processo de reversibilidade de hidratação foi estudado dando ênfase as suas propriedades estruturais. A caracterização por espectroscopia de infravermelho, difração de raios-X em pó, difração de raios- X em monocristal, análise elementar e análise termogravimétrica foram feitas. As reações foram realizadas empregando-se sais de amônio dos ácidos selenínicos e acetato tetrahidratado do metal Co(II). Os complexos hidratados 3B e 4B foram obtidos, e suas análises por difração de raios X em monocristais, mostram compostos isoestruturais com fórmula molecular [Co(OH2)4(O2SeC6H4X)2], com X = CH3 (3B); e Cl (4B), que formam redes complexas bidimensionais através de ligações de hidrogênio. As estruturas dos complexos [Co(OH2)2(O2SePh)2] (1A) e [Co(OH2)4(O2SeC6H4t-But)2] (2B), foram determinadas por difração de raios-X de pó. Já através do processo de desidratação dos complexos 1A, 2B, 3B e 4B, em temperatura de 140°C em torno de 2 horas em atmosfera de argônio, obteve-se os polímeros de coordenação: phyllo poli [Co(O2SeC4H5)2] 1C, phyllo poli [Co(O2SeC6H4t-But)2]2C, phyllo poli [Co(O2SeC6H4Me)2] 3C ephyllo poli [Co(O2SeC6H4Cl)2] 4C. Os complexos desidratados (1C, 2C, 3C e 4C) foram armazenados em ambiente úmido (84% UR). Após cinco dias foi possível a constatação da reidratação dos complexos 1A', 2B' e 3B' aos seus respectivos produtos originais. A reversibilidade para 4A' ocorre em menor proporção. Foram realizadas análises termogravimétricas, espectroscopia na região do infravermelho, microscopia eletrônica de varredura, análise elementar e ponto de fusão para todos os complexos hidratados, desidratados e reidratados. Comprovando além da pureza, as mudanças estruturais, que ocorrem em cada fase obtida nos complexos hidratados, desidratados e reidratados.application/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em QuímicaUFSMBRQuímicaFenilseleninatosHidrataçãoCobaltoQuímica inorgânicaCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICAHidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II)Reversible hydration of complex for-replaced fenilseleninatos cobalt(II)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisBurrow, Robert Alanhttp://lattes.cnpq.br/5452385625669684Santos, Aline Joana Rolina Wohlmuth Alves doshttp://lattes.cnpq.br/1630733121757523Squizani, Fatimahttp://lattes.cnpq.br/1060502818943139http://lattes.cnpq.br/0690883486439901Dalla Barba, Catilene100600000000400500300500500da77a491-2340-4bec-afed-a9ed5dd5092a12987d80-e58c-432d-930a-0131c12b0249ce578765-c3ea-444f-a5c5-1bbe76c916506c576d48-34e1-4008-b46b-a68350c55a17info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALDALLA BARBA, CATILENE.pdfapplication/pdf3874506http://repositorio.ufsm.br/bitstream/1/10567/1/DALLA%20BARBA%2c%20CATILENE.pdfd8c8d9f32b13377cbda69f1ed36ad96cMD51TEXTDALLA BARBA, CATILENE.pdf.txtDALLA BARBA, CATILENE.pdf.txtExtracted texttext/plain74348http://repositorio.ufsm.br/bitstream/1/10567/2/DALLA%20BARBA%2c%20CATILENE.pdf.txt9ad57b757aa4e962d17e5740da9b095aMD52THUMBNAILDALLA BARBA, CATILENE.pdf.jpgDALLA BARBA, CATILENE.pdf.jpgIM Thumbnailimage/jpeg4273http://repositorio.ufsm.br/bitstream/1/10567/3/DALLA%20BARBA%2c%20CATILENE.pdf.jpg27e24af0eea162e87b2bfb73f52c0932MD531/105672023-05-23 14:33:06.073oai:repositorio.ufsm.br:1/10567Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2023-05-23T17:33:06Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II) |
dc.title.alternative.eng.fl_str_mv |
Reversible hydration of complex for-replaced fenilseleninatos cobalt(II) |
title |
Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II) |
spellingShingle |
Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II) Dalla Barba, Catilene Fenilseleninatos Hidratação Cobalto Química inorgânica CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II) |
title_full |
Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II) |
title_fullStr |
Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II) |
title_full_unstemmed |
Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II) |
title_sort |
Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II) |
author |
Dalla Barba, Catilene |
author_facet |
Dalla Barba, Catilene |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Burrow, Robert Alan |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5452385625669684 |
dc.contributor.referee1.fl_str_mv |
Santos, Aline Joana Rolina Wohlmuth Alves dos |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/1630733121757523 |
dc.contributor.referee2.fl_str_mv |
Squizani, Fatima |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/1060502818943139 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0690883486439901 |
dc.contributor.author.fl_str_mv |
Dalla Barba, Catilene |
contributor_str_mv |
Burrow, Robert Alan Santos, Aline Joana Rolina Wohlmuth Alves dos Squizani, Fatima |
dc.subject.por.fl_str_mv |
Fenilseleninatos Hidratação Cobalto Química inorgânica |
topic |
Fenilseleninatos Hidratação Cobalto Química inorgânica CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
In this study eight novel compounds were synthesized and characterized from pre-ligands pheylseleninic acid 1, 4-t-butiphenyilseleninic acid 2, 4-methylphenyilseninic acid 3 and 4-clorophenylseleninic acid 4. The ability of each compound in the process of reversibility of hydration was studied with emphasis on their properties and structural characterization by infrared spectroscopy, single-crystal x-ray diffraction, powder x-ray diffraction, elemental analysis and thermogravimetric analysis. The reactions were carried out ammonium salts of seleninics acids and metal salt Co(II). Hydrated complexes obtained single crystals suitable for x-ray diffraction, were obtained by hydrothermal synthesis reactions the complexes 3b and 4b show molecular compounds with the formula [Co (OH2)4(O2SeC6H4X)2], x = CH3 3B, and x= Cl 4B, dimensional form complex networks through hydrogen bonds and are isostructural. 1A and 2B of complex structures were determined by powder x-ray diffraction. Dehydration process of complexes 1A, 2B, 3B and 4B, at a temperature of 140 °C about 2 hours in argon atmosphere, the obtained coordination polymers: phyllo poli [Co(O2SeC4H5)2] 1C, phyllo poli [Co(O2SeC6H4t-But)2]2C, phyllo poli [Co(O2SeC6H4Me)2] 3C e phyllo poli [Co(O2SeC6H4Cl)2] 4C. The dehydrated complex (1C, 2C, 3C and 4C), were stored in a humid environment (84% RH). After five days it was possible the realization of rehydration of each complex 1A', 2B' and 3B' to their original products. The reversibility 4A' occurs to a lesser extent when compared with your original product Analyses thermogravimetric, infrared spectroscopy, scanning electron microscopy, elemental analysis and melting point for all complex hydrated, dehydrated and rehydrated. Proving beyond purity, the changes that occur in each phase obtained in complex hydrated, dehydrated and rehydrated. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-08-30 |
dc.date.accessioned.fl_str_mv |
2017-05-11 |
dc.date.available.fl_str_mv |
2017-05-11 |
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 |
BARBA, Catilene Dalla. Reversible hydration of complex for-replaced fenilseleninatos cobalt(II). 2013. 59 f. Dissertação (Mestrado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2013. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/10567 |
identifier_str_mv |
BARBA, Catilene Dalla. Reversible hydration of complex for-replaced fenilseleninatos cobalt(II). 2013. 59 f. Dissertação (Mestrado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2013. |
url |
http://repositorio.ufsm.br/handle/1/10567 |
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Universidade Federal de Santa Maria |
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UFSM |
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Universidade Federal de Santa Maria |
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