Síntese, caracterização e aplicação de compostos contendo oxiânions de selênio
Ano de defesa: | 2020 |
---|---|
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
Centro de Ciências Naturais e Exatas |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Química
|
Departamento: |
Química
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/23083 |
Resumo: | This work describes the synthesis and structural characterization of five new coordination compounds containing, as an inorganic ligand, the selenite and hydrogen selenite anion. The compounds [Zn4(μ-SeO3)2(μ4-SeO3)2(bipy)4]·11H2O (1) and [Zn4(μ-SeO3)2(μ4-SeO3)2(phen)4]·9H2O (2) are molecular while [Zn(μ-HSeO3)2(bipy)]n (3), [Zn(μ-HSeO3)2(phen)]n (4) and [Co(μ-HSeO3)2(bipy)]n (5) are polymeric. The compounds were obtained from a solvothermal system and characterized by single crystal X-ray diffraction analysis, elemental analysis (EA), high resolution mass spectrometry, infrared (IR) spectroscopy, Raman spectroscopy and, for some of them, nuclear magnetic resonance spectroscopy analysis was performed. Compounds 1, 4 and 5 were tested as photosensitizers of TiO2 for H2(g) production. The compounds 4 and 5 showed promising results. The application is of great value due to the search for renewable, accessible and non-polluting energy sources. |
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2021-12-01T11:37:34Z2021-12-01T11:37:34Z2020-02-18http://repositorio.ufsm.br/handle/1/23083This work describes the synthesis and structural characterization of five new coordination compounds containing, as an inorganic ligand, the selenite and hydrogen selenite anion. The compounds [Zn4(μ-SeO3)2(μ4-SeO3)2(bipy)4]·11H2O (1) and [Zn4(μ-SeO3)2(μ4-SeO3)2(phen)4]·9H2O (2) are molecular while [Zn(μ-HSeO3)2(bipy)]n (3), [Zn(μ-HSeO3)2(phen)]n (4) and [Co(μ-HSeO3)2(bipy)]n (5) are polymeric. The compounds were obtained from a solvothermal system and characterized by single crystal X-ray diffraction analysis, elemental analysis (EA), high resolution mass spectrometry, infrared (IR) spectroscopy, Raman spectroscopy and, for some of them, nuclear magnetic resonance spectroscopy analysis was performed. Compounds 1, 4 and 5 were tested as photosensitizers of TiO2 for H2(g) production. The compounds 4 and 5 showed promising results. The application is of great value due to the search for renewable, accessible and non-polluting energy sources.Este trabalho descreve a síntese e caracterização estrutural de cinco novos compostos de coordenação contendo, como ligante inorgânico, o ânion selenito e hidrogenosselenito. Os compostos [Zn4(μ-SeO3)2(μ4-SeO3)2(bipy)4]·11H2O (1) e [Zn4(μ-SeO3)2(μ4-SeO3)2(phen)4]·9H2O (2) são moleculares enquanto [Zn(μ-HSeO3)2(bipy)]n (3), [Zn(μ-HSeO3)2(phen)]n (4) e [Co(μ-HSeO3)2(bipy)]n (5) são poliméricos. Os compostos foram obtidos a partir de sistema solvotérmico e caracterizados por análise de difração de raios X em monocristal, análise elementar (AE), espectrometria de massa de alta resolução, espectroscopia de infravermelho (IV), espectroscopia Raman e, para alguns deles, foi realizada análise por espectroscopia de ressonância magnética nuclear. Os compostos 1, 4 e 5 foram testados como fotossensibilizadores de TiO2 para produção de H2(g). Apresentaram resultados promissores os compostos 4 e 5. A aplicação é de grande valia devido à busca por fontes energéticas renováveis, acessíveis e não poluentes.Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqCoordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESFundação de Amparo à Pesquisa do Estado do Rio Grande do Sul - FAPERGSporUniversidade Federal de Santa MariaCentro de Ciências Naturais e ExatasPrograma de Pós-Graduação em QuímicaUFSMBrasilQuímicaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessSelenitoCompostos de coordenaçãoPolímeros de coordenaçãoSolvotermalHidrogenosselenitoFotossensibilizadorSeleniteCoordination compoundsHydrogen seleniteCoordination polymersPhotosensitizerCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICASíntese, caracterização e aplicação de compostos contendo oxiânions de selênioSynthesis, characterization and application of compounds containing selenium oxyanionsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisTirloni, Bárbarahttp://lattes.cnpq.br/2866324870100182Vargas, Jaqueline PintoSchwade, Vânia Denisehttp://lattes.cnpq.br/7304134222169695Lunardi, Andressa10060000000060060060060060097e2b796-c956-420a-a330-7909932df595da07538d-33bd-44fd-bf81-a74b96e57ac0865cc6b8-a659-44f6-844c-8c28a8f467981318b048-8b9b-40b1-a03e-c5d5ad763f42reponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMLICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Síntese, caracterização e aplicação de compostos contendo oxiânions de selênio |
dc.title.alternative.eng.fl_str_mv |
Synthesis, characterization and application of compounds containing selenium oxyanions |
title |
Síntese, caracterização e aplicação de compostos contendo oxiânions de selênio |
spellingShingle |
Síntese, caracterização e aplicação de compostos contendo oxiânions de selênio Lunardi, Andressa Selenito Compostos de coordenação Polímeros de coordenação Solvotermal Hidrogenosselenito Fotossensibilizador Selenite Coordination compounds Hydrogen selenite Coordination polymers Photosensitizer CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Síntese, caracterização e aplicação de compostos contendo oxiânions de selênio |
title_full |
Síntese, caracterização e aplicação de compostos contendo oxiânions de selênio |
title_fullStr |
Síntese, caracterização e aplicação de compostos contendo oxiânions de selênio |
title_full_unstemmed |
Síntese, caracterização e aplicação de compostos contendo oxiânions de selênio |
title_sort |
Síntese, caracterização e aplicação de compostos contendo oxiânions de selênio |
author |
Lunardi, Andressa |
author_facet |
Lunardi, Andressa |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Tirloni, Bárbara |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/2866324870100182 |
dc.contributor.referee1.fl_str_mv |
Vargas, Jaqueline Pinto |
dc.contributor.referee2.fl_str_mv |
Schwade, Vânia Denise |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7304134222169695 |
dc.contributor.author.fl_str_mv |
Lunardi, Andressa |
contributor_str_mv |
Tirloni, Bárbara Vargas, Jaqueline Pinto Schwade, Vânia Denise |
dc.subject.por.fl_str_mv |
Selenito Compostos de coordenação Polímeros de coordenação Solvotermal |
topic |
Selenito Compostos de coordenação Polímeros de coordenação Solvotermal Hidrogenosselenito Fotossensibilizador Selenite Coordination compounds Hydrogen selenite Coordination polymers Photosensitizer CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.eng.fl_str_mv |
Hidrogenosselenito Fotossensibilizador Selenite Coordination compounds Hydrogen selenite Coordination polymers Photosensitizer |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
This work describes the synthesis and structural characterization of five new coordination compounds containing, as an inorganic ligand, the selenite and hydrogen selenite anion. The compounds [Zn4(μ-SeO3)2(μ4-SeO3)2(bipy)4]·11H2O (1) and [Zn4(μ-SeO3)2(μ4-SeO3)2(phen)4]·9H2O (2) are molecular while [Zn(μ-HSeO3)2(bipy)]n (3), [Zn(μ-HSeO3)2(phen)]n (4) and [Co(μ-HSeO3)2(bipy)]n (5) are polymeric. The compounds were obtained from a solvothermal system and characterized by single crystal X-ray diffraction analysis, elemental analysis (EA), high resolution mass spectrometry, infrared (IR) spectroscopy, Raman spectroscopy and, for some of them, nuclear magnetic resonance spectroscopy analysis was performed. Compounds 1, 4 and 5 were tested as photosensitizers of TiO2 for H2(g) production. The compounds 4 and 5 showed promising results. The application is of great value due to the search for renewable, accessible and non-polluting energy sources. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020-02-18 |
dc.date.accessioned.fl_str_mv |
2021-12-01T11:37:34Z |
dc.date.available.fl_str_mv |
2021-12-01T11:37:34Z |
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.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/23083 |
url |
http://repositorio.ufsm.br/handle/1/23083 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
100600000000 |
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600 600 600 600 600 |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Naturais e Exatas |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Química |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Química |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Naturais e Exatas |
dc.source.none.fl_str_mv |
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UFSM |
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