Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticles
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/5997 |
Resumo: | New lanthanide complexes of 3-hydroxypicolinic acid (HpicOH) were prepared: [Ln(H2O)- (picOH)2(í-HpicO)]â3H2O (Ln ) Eu, Tb, Er). The complexes were characterized using photoluminescence, infrared, Raman, and 1H NMR spectroscopy, and elemental analysis. The crystal structure of [Eu(H2O)(picOH)2(í-HpicO)]â3H2O 1 was determined by X-ray diffraction. Compound 1 crystallizes in a monoclinic system with space group P21/c and cell parameters a ) 9.105(13) Å, b ) 18.796(25) Å, and c ) 13.531(17) Å, and â ) 104.86(1) deg. The 3-hydroxypicolinate ligands coordinate through both N,O- or O,O- chelation to the lanthanide ions, as shown by X-ray and spectroscopic results. Photoluminescence measurements were performed for the Eu(III) and Tb(III) complexes; the Eu(III) complex was investigated in more detail. The Eu(III) compound is highly luminescent and acts as a photoactive center in nanocomposite materials whose host matrixes are silica nanoparticles. |
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7160 |
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Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticlesNew lanthanide complexes of 3-hydroxypicolinic acid (HpicOH) were prepared: [Ln(H2O)- (picOH)2(í-HpicO)]â3H2O (Ln ) Eu, Tb, Er). The complexes were characterized using photoluminescence, infrared, Raman, and 1H NMR spectroscopy, and elemental analysis. The crystal structure of [Eu(H2O)(picOH)2(í-HpicO)]â3H2O 1 was determined by X-ray diffraction. Compound 1 crystallizes in a monoclinic system with space group P21/c and cell parameters a ) 9.105(13) Å, b ) 18.796(25) Å, and c ) 13.531(17) Å, and â ) 104.86(1) deg. The 3-hydroxypicolinate ligands coordinate through both N,O- or O,O- chelation to the lanthanide ions, as shown by X-ray and spectroscopic results. Photoluminescence measurements were performed for the Eu(III) and Tb(III) complexes; the Eu(III) complex was investigated in more detail. The Eu(III) compound is highly luminescent and acts as a photoactive center in nanocomposite materials whose host matrixes are silica nanoparticles.American Chemical Society2012-02-07T16:56:59Z2003-01-01T00:00:00Z2003-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/5997eng0897-4756Soares-Santos, PCRNogueira, HISFelix, VDrew, MGBFerreira, RASCarlos, LDTrindade, Tinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:06:40Zoai:ria.ua.pt:10773/5997Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:42:58.841919Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticles |
title |
Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticles |
spellingShingle |
Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticles Soares-Santos, PCR |
title_short |
Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticles |
title_full |
Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticles |
title_fullStr |
Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticles |
title_full_unstemmed |
Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticles |
title_sort |
Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticles |
author |
Soares-Santos, PCR |
author_facet |
Soares-Santos, PCR Nogueira, HIS Felix, V Drew, MGB Ferreira, RAS Carlos, LD Trindade, T |
author_role |
author |
author2 |
Nogueira, HIS Felix, V Drew, MGB Ferreira, RAS Carlos, LD Trindade, T |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Soares-Santos, PCR Nogueira, HIS Felix, V Drew, MGB Ferreira, RAS Carlos, LD Trindade, T |
description |
New lanthanide complexes of 3-hydroxypicolinic acid (HpicOH) were prepared: [Ln(H2O)- (picOH)2(í-HpicO)]â3H2O (Ln ) Eu, Tb, Er). The complexes were characterized using photoluminescence, infrared, Raman, and 1H NMR spectroscopy, and elemental analysis. The crystal structure of [Eu(H2O)(picOH)2(í-HpicO)]â3H2O 1 was determined by X-ray diffraction. Compound 1 crystallizes in a monoclinic system with space group P21/c and cell parameters a ) 9.105(13) Å, b ) 18.796(25) Å, and c ) 13.531(17) Å, and â ) 104.86(1) deg. The 3-hydroxypicolinate ligands coordinate through both N,O- or O,O- chelation to the lanthanide ions, as shown by X-ray and spectroscopic results. Photoluminescence measurements were performed for the Eu(III) and Tb(III) complexes; the Eu(III) complex was investigated in more detail. The Eu(III) compound is highly luminescent and acts as a photoactive center in nanocomposite materials whose host matrixes are silica nanoparticles. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-01-01T00:00:00Z 2003-01 2012-02-07T16:56:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/5997 |
url |
http://hdl.handle.net/10773/5997 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0897-4756 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
American Chemical Society |
publisher.none.fl_str_mv |
American Chemical Society |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137478118998016 |