Association of indopolymethine cyanine cations with anions of sulfonephthalein and xanthene dyes in water
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000200017 |
Resumo: | The association of the cationic dye indoheptamethine cyanine with various anionic dyes (four sulfonephthaleins and five xanthenes) in aqueous solutions was detected using the Vis-spectroscopic method. The values of the association constants are within the range (10(4) to 7×10(7) mol-1 L). In all the cases a substantial hypochromic effect is observed for the Vis absorption band of the cation (lambdamax = 737 nm). The interaction of indotrimethinium cation (lambdamax = 540 nm) with anionic species manifests itself in analogous manner. Electrostatic, Van der Waals, and hydrophobic interactions are regarded as driving forces of the association. Addition of ionic surfactants destroys the dye associates, primarily due to interactions with the oppositely charged dye ions. This process is accompanied by the restoration of the initial Vis absorption bands of both the cationic and the anionic dye. |
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Association of indopolymethine cyanine cations with anions of sulfonephthalein and xanthene dyes in waterpolymethine cyanine dyes with indoline end groupssulfonephthaleinsxanthenesVis absorption spectraion association in waterionic surfactantsThe association of the cationic dye indoheptamethine cyanine with various anionic dyes (four sulfonephthaleins and five xanthenes) in aqueous solutions was detected using the Vis-spectroscopic method. The values of the association constants are within the range (10(4) to 7×10(7) mol-1 L). In all the cases a substantial hypochromic effect is observed for the Vis absorption band of the cation (lambdamax = 737 nm). The interaction of indotrimethinium cation (lambdamax = 540 nm) with anionic species manifests itself in analogous manner. Electrostatic, Van der Waals, and hydrophobic interactions are regarded as driving forces of the association. Addition of ionic surfactants destroys the dye associates, primarily due to interactions with the oppositely charged dye ions. This process is accompanied by the restoration of the initial Vis absorption bands of both the cationic and the anionic dye.Sociedade Brasileira de Química2005-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000200017Journal of the Brazilian Chemical Society v.16 n.2 2005reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532005000200017info:eu-repo/semantics/openAccessShapovalov,Serghey A.Koval,Valentina L.Chernaya,Tatyana A.Pereverzev,Andrey Yu.Derevyanko,Nadezhda A.Ishchenko,Aleksandr A.Mchedlov-Petrossyan,Nikolay O.eng2005-05-24T00:00:00Zoai:scielo:S0103-50532005000200017Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2005-05-24T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Association of indopolymethine cyanine cations with anions of sulfonephthalein and xanthene dyes in water |
title |
Association of indopolymethine cyanine cations with anions of sulfonephthalein and xanthene dyes in water |
spellingShingle |
Association of indopolymethine cyanine cations with anions of sulfonephthalein and xanthene dyes in water Shapovalov,Serghey A. polymethine cyanine dyes with indoline end groups sulfonephthaleins xanthenes Vis absorption spectra ion association in water ionic surfactants |
title_short |
Association of indopolymethine cyanine cations with anions of sulfonephthalein and xanthene dyes in water |
title_full |
Association of indopolymethine cyanine cations with anions of sulfonephthalein and xanthene dyes in water |
title_fullStr |
Association of indopolymethine cyanine cations with anions of sulfonephthalein and xanthene dyes in water |
title_full_unstemmed |
Association of indopolymethine cyanine cations with anions of sulfonephthalein and xanthene dyes in water |
title_sort |
Association of indopolymethine cyanine cations with anions of sulfonephthalein and xanthene dyes in water |
author |
Shapovalov,Serghey A. |
author_facet |
Shapovalov,Serghey A. Koval,Valentina L. Chernaya,Tatyana A. Pereverzev,Andrey Yu. Derevyanko,Nadezhda A. Ishchenko,Aleksandr A. Mchedlov-Petrossyan,Nikolay O. |
author_role |
author |
author2 |
Koval,Valentina L. Chernaya,Tatyana A. Pereverzev,Andrey Yu. Derevyanko,Nadezhda A. Ishchenko,Aleksandr A. Mchedlov-Petrossyan,Nikolay O. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Shapovalov,Serghey A. Koval,Valentina L. Chernaya,Tatyana A. Pereverzev,Andrey Yu. Derevyanko,Nadezhda A. Ishchenko,Aleksandr A. Mchedlov-Petrossyan,Nikolay O. |
dc.subject.por.fl_str_mv |
polymethine cyanine dyes with indoline end groups sulfonephthaleins xanthenes Vis absorption spectra ion association in water ionic surfactants |
topic |
polymethine cyanine dyes with indoline end groups sulfonephthaleins xanthenes Vis absorption spectra ion association in water ionic surfactants |
description |
The association of the cationic dye indoheptamethine cyanine with various anionic dyes (four sulfonephthaleins and five xanthenes) in aqueous solutions was detected using the Vis-spectroscopic method. The values of the association constants are within the range (10(4) to 7×10(7) mol-1 L). In all the cases a substantial hypochromic effect is observed for the Vis absorption band of the cation (lambdamax = 737 nm). The interaction of indotrimethinium cation (lambdamax = 540 nm) with anionic species manifests itself in analogous manner. Electrostatic, Van der Waals, and hydrophobic interactions are regarded as driving forces of the association. Addition of ionic surfactants destroys the dye associates, primarily due to interactions with the oppositely charged dye ions. This process is accompanied by the restoration of the initial Vis absorption bands of both the cationic and the anionic dye. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-04-01 |
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=S0103-50532005000200017 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000200017 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532005000200017 |
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 |
Journal of the Brazilian Chemical Society v.16 n.2 2005 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318166163062784 |