Transferência de energia entre corantes catiônicos em sistemas homogêneos
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , , |
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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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 |
_version_ |
1750318103416274944 |