(Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory properties

Detalhes bibliográficos
Autor(a) principal: Batista, Rosa Maria Ferreira
Data de Publicação: 2011
Outros Autores: Oliveira, Elisabete, Costa, Susana P. G., Lodeiro, Carlos, Raposo, M. Manuela M., Ferreira, R. Cristina M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/15117
Resumo: A series of novel (oligo)thienyl-imidazobenzocrown ethers were synthesised through a simple method and evaluated as fluorimetric chemosensors for transition metal cations. Interaction with Ni2+, Pd2+, and Hg2+ in ACN/DMSO solution (99:1) was studied by absorption and emission spectroscopy. Chemoselectivity studies in the presence of Na+ were also carried out and a fluorescence enhancement upon chelation (CHEF) effect was observed following Hg2+ complexation. Considering that most systems using fluorescence spectroscopy for detecting Hg2+ are based on the complexation enhancement of the fluorescence quenching (CHEQ) effect, the present work represents one of the few examples for sensing of Hg2+ based on a CHEF effect.
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spelling (Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory propertiesBenzo-15-crown-5 ether(oligo)thiopheneImidazoleFluorescent chemosensorsHg2+Pd2+CHEF effectBenzo-15-crown-5 ether (Oligo)thiopheneScience & TechnologyA series of novel (oligo)thienyl-imidazobenzocrown ethers were synthesised through a simple method and evaluated as fluorimetric chemosensors for transition metal cations. Interaction with Ni2+, Pd2+, and Hg2+ in ACN/DMSO solution (99:1) was studied by absorption and emission spectroscopy. Chemoselectivity studies in the presence of Na+ were also carried out and a fluorescence enhancement upon chelation (CHEF) effect was observed following Hg2+ complexation. Considering that most systems using fluorescence spectroscopy for detecting Hg2+ are based on the complexation enhancement of the fluorescence quenching (CHEQ) effect, the present work represents one of the few examples for sensing of Hg2+ based on a CHEF effect.Fundação para a Ciência e a Tecnologia (FCT) - PTDC/QUI/66250/2006, SFRH/BD/36396/2007, SRFH/BPD/72557/2010ElsevierUniversidade do MinhoBatista, Rosa Maria FerreiraOliveira, ElisabeteCosta, Susana P. G.Lodeiro, CarlosRaposo, M. Manuela M.Ferreira, R. Cristina M.20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/15117eng0039-914010.1016/j.talanta.2011.07.107http://www.journals.elsevier.com/info: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:RCAAP2023-07-21T12:39:45Zoai:repositorium.sdum.uminho.pt:1822/15117Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:36:25.079664Repositório 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 (Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory properties
title (Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory properties
spellingShingle (Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory properties
Batista, Rosa Maria Ferreira
Benzo-15-crown-5 ether
(oligo)thiophene
Imidazole
Fluorescent chemosensors
Hg2+
Pd2+
CHEF effect
Benzo-15-crown-5 ether (Oligo)thiophene
Science & Technology
title_short (Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory properties
title_full (Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory properties
title_fullStr (Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory properties
title_full_unstemmed (Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory properties
title_sort (Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory properties
author Batista, Rosa Maria Ferreira
author_facet Batista, Rosa Maria Ferreira
Oliveira, Elisabete
Costa, Susana P. G.
Lodeiro, Carlos
Raposo, M. Manuela M.
Ferreira, R. Cristina M.
author_role author
author2 Oliveira, Elisabete
Costa, Susana P. G.
Lodeiro, Carlos
Raposo, M. Manuela M.
Ferreira, R. Cristina M.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Batista, Rosa Maria Ferreira
Oliveira, Elisabete
Costa, Susana P. G.
Lodeiro, Carlos
Raposo, M. Manuela M.
Ferreira, R. Cristina M.
dc.subject.por.fl_str_mv Benzo-15-crown-5 ether
(oligo)thiophene
Imidazole
Fluorescent chemosensors
Hg2+
Pd2+
CHEF effect
Benzo-15-crown-5 ether (Oligo)thiophene
Science & Technology
topic Benzo-15-crown-5 ether
(oligo)thiophene
Imidazole
Fluorescent chemosensors
Hg2+
Pd2+
CHEF effect
Benzo-15-crown-5 ether (Oligo)thiophene
Science & Technology
description A series of novel (oligo)thienyl-imidazobenzocrown ethers were synthesised through a simple method and evaluated as fluorimetric chemosensors for transition metal cations. Interaction with Ni2+, Pd2+, and Hg2+ in ACN/DMSO solution (99:1) was studied by absorption and emission spectroscopy. Chemoselectivity studies in the presence of Na+ were also carried out and a fluorescence enhancement upon chelation (CHEF) effect was observed following Hg2+ complexation. Considering that most systems using fluorescence spectroscopy for detecting Hg2+ are based on the complexation enhancement of the fluorescence quenching (CHEQ) effect, the present work represents one of the few examples for sensing of Hg2+ based on a CHEF effect.
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-01-01T00:00:00Z
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/1822/15117
url http://hdl.handle.net/1822/15117
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0039-9140
10.1016/j.talanta.2011.07.107
http://www.journals.elsevier.com/
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 Elsevier
publisher.none.fl_str_mv Elsevier
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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