Síntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te)
Ano de defesa: | 2017 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
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/1/13734 |
Resumo: | Rhenium and technetium coordination chemistry containing arylthiolate ligands are long known in the literature. However, there is a limited understanding regarding the correlates containing heavier chalcogens (Se and Te), which is primarily due to the instability of the ArEH species. In order to improve the state of the art of this field, this thesis presents a study concerning the coordination chemistry of the elements rhenium and technetium with arylchalcogenolate ligands (Se,Te). The applied methodology involves the production of the ligands in situ, by the reduction of the diaryldichalcogenides with LiBH4 solution, resulting in the formation of lithium arylchalcogenolates (LiEAr). Halide substitution reactions with metals in different oxidation states, containing several ancillary ligands, resulted in 16 new complexes with fair yields, in the range of 51% to 74%. Although the complexes are stable in solid state, they exhibit moderate to high decomposition when in solution. Among the obtained results, two classes are highlighted, the first complexes featuring the Tc–Te bond and the first arylselenolate Tc complexes. Since methods of crystallization employed were successful, X-ray diffraction was used as main characterization method, revealing the coordination environment of the complexes. Additional analysis such as infrared spectroscopy, nuclear magnetic resonance and mass spectroscopy confirm the obtained results. Due to the nature of the technetium compounds, DFT (Density Functional Theory) calculations were performed, unveiling details of the bonding structure in such compounds. From the positive outcome of the employed methodology, with assorted examples, this study paves the way for future research, either with more sophisticated arylchalcogenolate ligands, having additional coordination sites, as well the use of additional classes of rhenium and technetium complexes. |
id |
UFSM_3f471ba0a1868420ee51a53e51eaf789 |
---|---|
oai_identifier_str |
oai:repositorio.ufsm.br:1/13734 |
network_acronym_str |
UFSM |
network_name_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
repository_id_str |
|
spelling |
2018-07-10T20:01:24Z2018-07-10T20:01:24Z2017-12-06http://repositorio.ufsm.br/handle/1/13734Rhenium and technetium coordination chemistry containing arylthiolate ligands are long known in the literature. However, there is a limited understanding regarding the correlates containing heavier chalcogens (Se and Te), which is primarily due to the instability of the ArEH species. In order to improve the state of the art of this field, this thesis presents a study concerning the coordination chemistry of the elements rhenium and technetium with arylchalcogenolate ligands (Se,Te). The applied methodology involves the production of the ligands in situ, by the reduction of the diaryldichalcogenides with LiBH4 solution, resulting in the formation of lithium arylchalcogenolates (LiEAr). Halide substitution reactions with metals in different oxidation states, containing several ancillary ligands, resulted in 16 new complexes with fair yields, in the range of 51% to 74%. Although the complexes are stable in solid state, they exhibit moderate to high decomposition when in solution. Among the obtained results, two classes are highlighted, the first complexes featuring the Tc–Te bond and the first arylselenolate Tc complexes. Since methods of crystallization employed were successful, X-ray diffraction was used as main characterization method, revealing the coordination environment of the complexes. Additional analysis such as infrared spectroscopy, nuclear magnetic resonance and mass spectroscopy confirm the obtained results. Due to the nature of the technetium compounds, DFT (Density Functional Theory) calculations were performed, unveiling details of the bonding structure in such compounds. From the positive outcome of the employed methodology, with assorted examples, this study paves the way for future research, either with more sophisticated arylchalcogenolate ligands, having additional coordination sites, as well the use of additional classes of rhenium and technetium complexes.A química de coordenação de rênio e tecnécio contendo ligantes ariltiolatos é conhecida há muito tempo na literatura. Entretanto, há pouco entendimento em relação aos complexos análogos contendo calcogênios mais pesados (Se e Te), que se deve principalmente, à instabilidade das espécies ArEH. De modo a aprimorar o estado da arte, esta tese apresenta o estudo acerca da química de coordenação dos elementos rênio e tecnécio com ligantes arilcalcogenolatos (Se, Te). A metodologia aplicada envolve a síntese dos ligantes in situ, pela redução de diarildicalcogenetos (Ar2E2) com uma solução de LiBH4, resultando na formação de arilcalcogenolatos de lítio (LiEAr). Reações de substituição de haletos com metais em diferentes estados de oxidação, contendo ligantes auxiliares variados, geraram 16 novos complexos com rendimentos satisfatórios, entre 51% e 74%. Ainda que estáveis no estado sólido, observa-se decomposição dos compostos, de moderada a rápida, quando em solução. Dentre os exemplos obtidos, duas classes são destacadas; os primeiros complexos a apresentar as ligações Tc–Te e os primeiros complexos de tecnécio contendo ligantes arilselenolatos. Devido aos bons resultados dos métodos de cristalização empregados, a difração de raios X foi utilizada como método principal de caracterização, revelando o ambiente de coordenação dos complexos. Análises adicionais, como espectroscopia no infravermelho, ressonância magnética nuclear e espectrometria de massas, corroboram os resultados obtidos. Devido à natureza dos complexos de tecnécio sintetizados, cálculos de DFT (Density Functional Theory, Teoria do Funcional da Densidade) foram realizados, revelando detalhes importantes sobre as características das ligações nesses compostos. A partir do êxito da metodologia aplicada, com uma gama de resultados, abre-se um caminho para pesquisas futuras, seja com ligantes arilcalcogenolatos mais aprimorados, contendo sítios de coordenação adicionais, bem como a utilização de outras classes de complexos de rênio e tecnécio.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade 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/openAccessRênioTecnécioArilselenolatosAriltelurolatosQuímica de coordenaçãoRheniumTechnetiumArylselenolatesAryltellurolatesCoordination chemistryCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICASíntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te)Synthesis and characterization of rhenium and technetium complexes containing arylchalcogenolate (Se, Te) ligandsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisLang, Ernesto Schulzhttp://lattes.cnpq.br/4481982189769819Casagrande, Adriana Curi Aiubhttp://lattes.cnpq.br/7535947106862166Gil, Marcelo Priebehttp://lattes.cnpq.br/9638721601182642Tirloni, Bárbarahttp://lattes.cnpq.br/2866324870100182Burgo, Thiago Augusto de Limahttp://lattes.cnpq.br/5737213839553155http://lattes.cnpq.br/6374565086680699Cabral, Bruno Noschang1006000000006000c9d7568-d5c4-466d-b807-0125a7d37b97db6ce6cd-8bfd-4114-a60b-164472e0fb5d4c611110-f33d-4144-9cd4-0154240b459c9004699f-a533-43cf-bbb8-914468de8a422b9ed0e8-f4df-403a-8ca8-e8e57157f31f0ffd4df5-855a-4d2e-b7e2-fc126a3dba27reponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALTES_PPGQUIMICA_2017_CABRAL_BRUNO.pdfTES_PPGQUIMICA_2017_CABRAL_BRUNO.pdfTese de Doutoradoapplication/pdf21215878http://repositorio.ufsm.br/bitstream/1/13734/1/TES_PPGQUIMICA_2017_CABRAL_BRUNO.pdffda90e109bb39bc381bd7f7410bc7a01MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8804http://repositorio.ufsm.br/bitstream/1/13734/2/license_rdfc1efe8e24d7281448e873be30ea326ffMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81956http://repositorio.ufsm.br/bitstream/1/13734/3/license.txt2f0571ecee68693bd5cd3f17c1e075dfMD53TEXTTES_PPGQUIMICA_2017_CABRAL_BRUNO.pdf.txtTES_PPGQUIMICA_2017_CABRAL_BRUNO.pdf.txtExtracted texttext/plain182563http://repositorio.ufsm.br/bitstream/1/13734/4/TES_PPGQUIMICA_2017_CABRAL_BRUNO.pdf.txt006c4b629dec01aaa0995bf90f5772fdMD54THUMBNAILTES_PPGQUIMICA_2017_CABRAL_BRUNO.pdf.jpgTES_PPGQUIMICA_2017_CABRAL_BRUNO.pdf.jpgIM Thumbnailimage/jpeg4610http://repositorio.ufsm.br/bitstream/1/13734/5/TES_PPGQUIMICA_2017_CABRAL_BRUNO.pdf.jpge5c3e6afd4ad2f7aa15debb97ba2f00cMD551/137342018-07-10 17:01:25.086oai:repositorio.ufsm.br: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 Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2018-07-10T20:01:25Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Síntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te) |
dc.title.alternative.eng.fl_str_mv |
Synthesis and characterization of rhenium and technetium complexes containing arylchalcogenolate (Se, Te) ligands |
title |
Síntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te) |
spellingShingle |
Síntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te) Cabral, Bruno Noschang Rênio Tecnécio Arilselenolatos Ariltelurolatos Química de coordenação Rhenium Technetium Arylselenolates Aryltellurolates Coordination chemistry CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Síntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te) |
title_full |
Síntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te) |
title_fullStr |
Síntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te) |
title_full_unstemmed |
Síntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te) |
title_sort |
Síntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te) |
author |
Cabral, Bruno Noschang |
author_facet |
Cabral, Bruno Noschang |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Lang, Ernesto Schulz |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/4481982189769819 |
dc.contributor.referee1.fl_str_mv |
Casagrande, Adriana Curi Aiub |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/7535947106862166 |
dc.contributor.referee2.fl_str_mv |
Gil, Marcelo Priebe |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/9638721601182642 |
dc.contributor.referee3.fl_str_mv |
Tirloni, Bárbara |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/2866324870100182 |
dc.contributor.referee4.fl_str_mv |
Burgo, Thiago Augusto de Lima |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/5737213839553155 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6374565086680699 |
dc.contributor.author.fl_str_mv |
Cabral, Bruno Noschang |
contributor_str_mv |
Lang, Ernesto Schulz Casagrande, Adriana Curi Aiub Gil, Marcelo Priebe Tirloni, Bárbara Burgo, Thiago Augusto de Lima |
dc.subject.por.fl_str_mv |
Rênio Tecnécio Arilselenolatos Ariltelurolatos Química de coordenação |
topic |
Rênio Tecnécio Arilselenolatos Ariltelurolatos Química de coordenação Rhenium Technetium Arylselenolates Aryltellurolates Coordination chemistry CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.eng.fl_str_mv |
Rhenium Technetium Arylselenolates Aryltellurolates Coordination chemistry |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
Rhenium and technetium coordination chemistry containing arylthiolate ligands are long known in the literature. However, there is a limited understanding regarding the correlates containing heavier chalcogens (Se and Te), which is primarily due to the instability of the ArEH species. In order to improve the state of the art of this field, this thesis presents a study concerning the coordination chemistry of the elements rhenium and technetium with arylchalcogenolate ligands (Se,Te). The applied methodology involves the production of the ligands in situ, by the reduction of the diaryldichalcogenides with LiBH4 solution, resulting in the formation of lithium arylchalcogenolates (LiEAr). Halide substitution reactions with metals in different oxidation states, containing several ancillary ligands, resulted in 16 new complexes with fair yields, in the range of 51% to 74%. Although the complexes are stable in solid state, they exhibit moderate to high decomposition when in solution. Among the obtained results, two classes are highlighted, the first complexes featuring the Tc–Te bond and the first arylselenolate Tc complexes. Since methods of crystallization employed were successful, X-ray diffraction was used as main characterization method, revealing the coordination environment of the complexes. Additional analysis such as infrared spectroscopy, nuclear magnetic resonance and mass spectroscopy confirm the obtained results. Due to the nature of the technetium compounds, DFT (Density Functional Theory) calculations were performed, unveiling details of the bonding structure in such compounds. From the positive outcome of the employed methodology, with assorted examples, this study paves the way for future research, either with more sophisticated arylchalcogenolate ligands, having additional coordination sites, as well the use of additional classes of rhenium and technetium complexes. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-12-06 |
dc.date.accessioned.fl_str_mv |
2018-07-10T20:01:24Z |
dc.date.available.fl_str_mv |
2018-07-10T20:01:24Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/13734 |
url |
http://repositorio.ufsm.br/handle/1/13734 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
100600000000 |
dc.relation.confidence.fl_str_mv |
600 |
dc.relation.authority.fl_str_mv |
0c9d7568-d5c4-466d-b807-0125a7d37b97 db6ce6cd-8bfd-4114-a60b-164472e0fb5d 4c611110-f33d-4144-9cd4-0154240b459c 9004699f-a533-43cf-bbb8-914468de8a42 2b9ed0e8-f4df-403a-8ca8-e8e57157f31f 0ffd4df5-855a-4d2e-b7e2-fc126a3dba27 |
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 |
reponame:Biblioteca Digital de Teses e Dissertações do UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
collection |
Biblioteca Digital de Teses e Dissertações do UFSM |
bitstream.url.fl_str_mv |
http://repositorio.ufsm.br/bitstream/1/13734/1/TES_PPGQUIMICA_2017_CABRAL_BRUNO.pdf http://repositorio.ufsm.br/bitstream/1/13734/2/license_rdf http://repositorio.ufsm.br/bitstream/1/13734/3/license.txt http://repositorio.ufsm.br/bitstream/1/13734/4/TES_PPGQUIMICA_2017_CABRAL_BRUNO.pdf.txt http://repositorio.ufsm.br/bitstream/1/13734/5/TES_PPGQUIMICA_2017_CABRAL_BRUNO.pdf.jpg |
bitstream.checksum.fl_str_mv |
fda90e109bb39bc381bd7f7410bc7a01 c1efe8e24d7281448e873be30ea326ff 2f0571ecee68693bd5cd3f17c1e075df 006c4b629dec01aaa0995bf90f5772fd e5c3e6afd4ad2f7aa15debb97ba2f00c |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1793240147388530688 |