Transferência de energia entre corantes catiônicos em sistemas homogêneos

Detalhes bibliográficos
Autor(a) principal: Oliveira,Hueder Paulo Moisés de
Data de Publicação: 2003
Outros Autores: Machulek Junior,Amilcar, Legendre,Alexandre de Oliveira, Gehlen,Marcelo Henrique
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422003000400020
Resumo: In this work, the energy transfer by dipole-dipole interaction between cationic dyes in n-alcohols (methanol, ethanol, 1-propanol and 1-butanol) is studied by time resolved and steady state fluorescence measurements. The critical radii of energy transfer were determined by three independent methods; the spectral overlap, fluorescence decay profiles, and relative intensity measurements. In all solvents, R0 values of the dye pairs obtained from spectral overlap were between 40 to 90 Å. Steady state and time resolved fluorescence measurements resulted in values of R0 in the range of 50 - 80 Å, with good correlation of values.
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spelling Transferência de energia entre corantes catiônicos em sistemas homogêneosdyesfluorescenceenergy transferIn this work, the energy transfer by dipole-dipole interaction between cationic dyes in n-alcohols (methanol, ethanol, 1-propanol and 1-butanol) is studied by time resolved and steady state fluorescence measurements. The critical radii of energy transfer were determined by three independent methods; the spectral overlap, fluorescence decay profiles, and relative intensity measurements. In all solvents, R0 values of the dye pairs obtained from spectral overlap were between 40 to 90 Å. Steady state and time resolved fluorescence measurements resulted in values of R0 in the range of 50 - 80 Å, with good correlation of values.Sociedade Brasileira de Química2003-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422003000400020Química Nova v.26 n.4 2003reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422003000400020info:eu-repo/semantics/openAccessOliveira,Hueder Paulo Moisés deMachulek Junior,AmilcarLegendre,Alexandre de OliveiraGehlen,Marcelo Henriquepor2003-08-04T00:00:00Zoai:scielo:S0100-40422003000400020Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2003-08-04T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Transferência de energia entre corantes catiônicos em sistemas homogêneos
title Transferência de energia entre corantes catiônicos em sistemas homogêneos
spellingShingle Transferência de energia entre corantes catiônicos em sistemas homogêneos
Oliveira,Hueder Paulo Moisés de
dyes
fluorescence
energy transfer
title_short Transferência de energia entre corantes catiônicos em sistemas homogêneos
title_full Transferência de energia entre corantes catiônicos em sistemas homogêneos
title_fullStr Transferência de energia entre corantes catiônicos em sistemas homogêneos
title_full_unstemmed Transferência de energia entre corantes catiônicos em sistemas homogêneos
title_sort Transferência de energia entre corantes catiônicos em sistemas homogêneos
author Oliveira,Hueder Paulo Moisés de
author_facet Oliveira,Hueder Paulo Moisés de
Machulek Junior,Amilcar
Legendre,Alexandre de Oliveira
Gehlen,Marcelo Henrique
author_role author
author2 Machulek Junior,Amilcar
Legendre,Alexandre de Oliveira
Gehlen,Marcelo Henrique
author2_role author
author
author
dc.contributor.author.fl_str_mv Oliveira,Hueder Paulo Moisés de
Machulek Junior,Amilcar
Legendre,Alexandre de Oliveira
Gehlen,Marcelo Henrique
dc.subject.por.fl_str_mv dyes
fluorescence
energy transfer
topic dyes
fluorescence
energy transfer
description In this work, the energy transfer by dipole-dipole interaction between cationic dyes in n-alcohols (methanol, ethanol, 1-propanol and 1-butanol) is studied by time resolved and steady state fluorescence measurements. The critical radii of energy transfer were determined by three independent methods; the spectral overlap, fluorescence decay profiles, and relative intensity measurements. In all solvents, R0 values of the dye pairs obtained from spectral overlap were between 40 to 90 Å. Steady state and time resolved fluorescence measurements resulted in values of R0 in the range of 50 - 80 Å, with good correlation of values.
publishDate 2003
dc.date.none.fl_str_mv 2003-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422003000400020
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422003000400020
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422003000400020
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.26 n.4 2003
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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