Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents

Autores
Broglia, Martin Federico; Bertolotti, Sonia Graciela; Previtali, Carlos Mario; Montejano, Hernan Alfredo
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Photophysical and spectroscopic properties of phenosafranine were investigated in 21 solvents, including pure aprotic solvents and pure and binary protic solvent mixtures. It was found that these properties are highly dependent of the nature of the medium in protic solvents. Characteristic parameters such as the Stokes¡¯ shift, the fluorescence quantum yield and lifetime and the T¨CT absorption maxima frequencies showed a very clean solvent dependence, with a strong incidence of the specific interactions of phenosafranine with solvent molecules, most likely through hydrogen bonding. On the other hand, in aprotic solvents these parameters are practically insensitive to changes in solvent properties. The experimental results in protic media suggest an increase of the dipole moment of the dye molecule as a consequence of the S0¡úS1 transition, while a decrease in the dipole moment come along with the T1¡úTn transition. In selected protic solvents, the photophysical kinetic parameters were obtained from fluorescence quantum yield and lifetime determinations and intersystem-crossing quantum yields. Their solvent dependence is discussed.0¡úS1 transition, while a decrease in the dipole moment come along with the T1¡úTn transition. In selected protic solvents, the photophysical kinetic parameters were obtained from fluorescence quantum yield and lifetime determinations and intersystem-crossing quantum yields. Their solvent dependence is discussed.
Fil: Broglia, Martin Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Bertolotti, Sonia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Previtali, Carlos Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Montejano, Hernan Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Materia
Solvatochromic Effects
Phenosafranine
Fluorescence
Triplet-Triplet Absorption
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/244316
Acceder
id CONICETDig_adb5bfe6408c3a534a174d3dad114073
oai_identifier_str oai:ri.conicet.gov.ar:11336/244316
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solventsBroglia, Martin FedericoBertolotti, Sonia GracielaPrevitali, Carlos MarioMontejano, Hernan AlfredoSolvatochromic EffectsPhenosafranineFluorescenceTriplet-Triplet Absorptionhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Photophysical and spectroscopic properties of phenosafranine were investigated in 21 solvents, including pure aprotic solvents and pure and binary protic solvent mixtures. It was found that these properties are highly dependent of the nature of the medium in protic solvents. Characteristic parameters such as the Stokes¡¯ shift, the fluorescence quantum yield and lifetime and the T¨CT absorption maxima frequencies showed a very clean solvent dependence, with a strong incidence of the specific interactions of phenosafranine with solvent molecules, most likely through hydrogen bonding. On the other hand, in aprotic solvents these parameters are practically insensitive to changes in solvent properties. The experimental results in protic media suggest an increase of the dipole moment of the dye molecule as a consequence of the S0¡úS1 transition, while a decrease in the dipole moment come along with the T1¡úTn transition. In selected protic solvents, the photophysical kinetic parameters were obtained from fluorescence quantum yield and lifetime determinations and intersystem-crossing quantum yields. Their solvent dependence is discussed.0¡úS1 transition, while a decrease in the dipole moment come along with the T1¡úTn transition. In selected protic solvents, the photophysical kinetic parameters were obtained from fluorescence quantum yield and lifetime determinations and intersystem-crossing quantum yields. Their solvent dependence is discussed.Fil: Broglia, Martin Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Bertolotti, Sonia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Previtali, Carlos Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Montejano, Hernan Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaElsevier Science SA2006-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/244316Broglia, Martin Federico; Bertolotti, Sonia Graciela; Previtali, Carlos Mario; Montejano, Hernan Alfredo; Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents; Elsevier Science SA; Journal of Photochemistry and Photobiology A: Chemistry; 180; 1-2; 5-2006; 143-1491010-6030CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1010603005004934info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotochem.2005.10.007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:21:36Zoai:ri.conicet.gov.ar:11336/244316instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:21:37.202CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents
title Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents
spellingShingle Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents
Broglia, Martin Federico
Solvatochromic Effects
Phenosafranine
Fluorescence
Triplet-Triplet Absorption
title_short Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents
title_full Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents
title_fullStr Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents
title_full_unstemmed Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents
title_sort Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents
dc.creator.none.fl_str_mv Broglia, Martin Federico
Bertolotti, Sonia Graciela
Previtali, Carlos Mario
Montejano, Hernan Alfredo
author Broglia, Martin Federico
author_facet Broglia, Martin Federico
Bertolotti, Sonia Graciela
Previtali, Carlos Mario
Montejano, Hernan Alfredo
author_role author
author2 Bertolotti, Sonia Graciela
Previtali, Carlos Mario
Montejano, Hernan Alfredo
author2_role author
author
author
dc.subject.none.fl_str_mv Solvatochromic Effects
Phenosafranine
Fluorescence
Triplet-Triplet Absorption
topic Solvatochromic Effects
Phenosafranine
Fluorescence
Triplet-Triplet Absorption
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Photophysical and spectroscopic properties of phenosafranine were investigated in 21 solvents, including pure aprotic solvents and pure and binary protic solvent mixtures. It was found that these properties are highly dependent of the nature of the medium in protic solvents. Characteristic parameters such as the Stokes¡¯ shift, the fluorescence quantum yield and lifetime and the T¨CT absorption maxima frequencies showed a very clean solvent dependence, with a strong incidence of the specific interactions of phenosafranine with solvent molecules, most likely through hydrogen bonding. On the other hand, in aprotic solvents these parameters are practically insensitive to changes in solvent properties. The experimental results in protic media suggest an increase of the dipole moment of the dye molecule as a consequence of the S0¡úS1 transition, while a decrease in the dipole moment come along with the T1¡úTn transition. In selected protic solvents, the photophysical kinetic parameters were obtained from fluorescence quantum yield and lifetime determinations and intersystem-crossing quantum yields. Their solvent dependence is discussed.0¡úS1 transition, while a decrease in the dipole moment come along with the T1¡úTn transition. In selected protic solvents, the photophysical kinetic parameters were obtained from fluorescence quantum yield and lifetime determinations and intersystem-crossing quantum yields. Their solvent dependence is discussed.
Fil: Broglia, Martin Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Bertolotti, Sonia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Previtali, Carlos Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Montejano, Hernan Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
description Photophysical and spectroscopic properties of phenosafranine were investigated in 21 solvents, including pure aprotic solvents and pure and binary protic solvent mixtures. It was found that these properties are highly dependent of the nature of the medium in protic solvents. Characteristic parameters such as the Stokes¡¯ shift, the fluorescence quantum yield and lifetime and the T¨CT absorption maxima frequencies showed a very clean solvent dependence, with a strong incidence of the specific interactions of phenosafranine with solvent molecules, most likely through hydrogen bonding. On the other hand, in aprotic solvents these parameters are practically insensitive to changes in solvent properties. The experimental results in protic media suggest an increase of the dipole moment of the dye molecule as a consequence of the S0¡úS1 transition, while a decrease in the dipole moment come along with the T1¡úTn transition. In selected protic solvents, the photophysical kinetic parameters were obtained from fluorescence quantum yield and lifetime determinations and intersystem-crossing quantum yields. Their solvent dependence is discussed.0¡úS1 transition, while a decrease in the dipole moment come along with the T1¡úTn transition. In selected protic solvents, the photophysical kinetic parameters were obtained from fluorescence quantum yield and lifetime determinations and intersystem-crossing quantum yields. Their solvent dependence is discussed.
publishDate 2006
dc.date.none.fl_str_mv 2006-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/244316
Broglia, Martin Federico; Bertolotti, Sonia Graciela; Previtali, Carlos Mario; Montejano, Hernan Alfredo; Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents; Elsevier Science SA; Journal of Photochemistry and Photobiology A: Chemistry; 180; 1-2; 5-2006; 143-149
1010-6030
CONICET Digital
CONICET
url http://hdl.handle.net/11336/244316
identifier_str_mv Broglia, Martin Federico; Bertolotti, Sonia Graciela; Previtali, Carlos Mario; Montejano, Hernan Alfredo; Solvatochromic effects on the fluorescence and triplet–triplet absorption of phenosafranine in protic and aprotic solvents; Elsevier Science SA; Journal of Photochemistry and Photobiology A: Chemistry; 180; 1-2; 5-2006; 143-149
1010-6030
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1010603005004934
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotochem.2005.10.007
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science SA
publisher.none.fl_str_mv Elsevier Science SA
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846082606533181440
score 13.22299

Publicaciones similares