Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy

Autores
Broglia, Martin Federico; Gómez, María L; Bertolotti, Sonia Graciela; Montejano, Hernan Alfredo; Previtali, Carlos Mario
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The triplet quantum yield of the dyes safranine and phenosafranine was determined in methanol and acetonitrile by laser flash photolysis (LFP) and laser induced opto-acoustic spectroscopy (LIOAS). The excited singlet properties of both dyes were also determined in the two solvents. The LFP determination of the triplet yield was carried out by actinometric determination of the product ΦTεT and independent estimation of εT by the singlet depletion method and by energy transfer using anthracene as energy donor. The results of the three methodologies coincide within the experimental error. The values of ΦT are in the range 0.21-0.50, and in the case of phenosafranine are considerably higher than those previously reported in the literature. An interesting outcome is that the results of LIOAS determination agree with those of LFP within the confidence interval.
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: Gómez, María L. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Bertolotti, Sonia Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; 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
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
Materia
DYES
LASER PHOTOLYSIS
LIOAS
PHENOSAFRANINE
PHOTOPHYSICAL PROPERTIES
SAFRANINE
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:11336/94151
Acceder
id CONICETDig_4f0030e7c7f8aa9726110edd52c6dfa4
oai_identifier_str oai:ri.conicet.gov.ar:11336/94151
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopyBroglia, Martin FedericoGómez, María LBertolotti, Sonia GracielaMontejano, Hernan AlfredoPrevitali, Carlos MarioDYESLASER PHOTOLYSISLIOASPHENOSAFRANINEPHOTOPHYSICAL PROPERTIESSAFRANINEhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The triplet quantum yield of the dyes safranine and phenosafranine was determined in methanol and acetonitrile by laser flash photolysis (LFP) and laser induced opto-acoustic spectroscopy (LIOAS). The excited singlet properties of both dyes were also determined in the two solvents. The LFP determination of the triplet yield was carried out by actinometric determination of the product ΦTεT and independent estimation of εT by the singlet depletion method and by energy transfer using anthracene as energy donor. The results of the three methodologies coincide within the experimental error. The values of ΦT are in the range 0.21-0.50, and in the case of phenosafranine are considerably higher than those previously reported in the literature. An interesting outcome is that the results of LIOAS determination agree with those of LFP within the confidence interval.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: Gómez, María L. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Bertolotti, Sonia Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; 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; 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; ArgentinaElsevier Science Sa2005-07info: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/11336/94151Broglia, Martin Federico; Gómez, María L; Bertolotti, Sonia Graciela; Montejano, Hernan Alfredo; Previtali, Carlos Mario; Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy; Elsevier Science Sa; Journal of Photochemistry and Photobiology A: Chemistry; 173; 2; 7-2005; 115-1201010-6030CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1010603005000158info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotochem.2005.01.010info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:16:03Zoai:ri.conicet.gov.ar:11336/94151instacron: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:34982025-10-22 11:16:03.944CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy
title Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy
spellingShingle Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy
Broglia, Martin Federico
DYES
LASER PHOTOLYSIS
LIOAS
PHENOSAFRANINE
PHOTOPHYSICAL PROPERTIES
SAFRANINE
title_short Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy
title_full Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy
title_fullStr Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy
title_full_unstemmed Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy
title_sort Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy
dc.creator.none.fl_str_mv Broglia, Martin Federico
Gómez, María L
Bertolotti, Sonia Graciela
Montejano, Hernan Alfredo
Previtali, Carlos Mario
author Broglia, Martin Federico
author_facet Broglia, Martin Federico
Gómez, María L
Bertolotti, Sonia Graciela
Montejano, Hernan Alfredo
Previtali, Carlos Mario
author_role author
author2 Gómez, María L
Bertolotti, Sonia Graciela
Montejano, Hernan Alfredo
Previtali, Carlos Mario
author2_role author
author
author
author
dc.subject.none.fl_str_mv DYES
LASER PHOTOLYSIS
LIOAS
PHENOSAFRANINE
PHOTOPHYSICAL PROPERTIES
SAFRANINE
topic DYES
LASER PHOTOLYSIS
LIOAS
PHENOSAFRANINE
PHOTOPHYSICAL PROPERTIES
SAFRANINE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The triplet quantum yield of the dyes safranine and phenosafranine was determined in methanol and acetonitrile by laser flash photolysis (LFP) and laser induced opto-acoustic spectroscopy (LIOAS). The excited singlet properties of both dyes were also determined in the two solvents. The LFP determination of the triplet yield was carried out by actinometric determination of the product ΦTεT and independent estimation of εT by the singlet depletion method and by energy transfer using anthracene as energy donor. The results of the three methodologies coincide within the experimental error. The values of ΦT are in the range 0.21-0.50, and in the case of phenosafranine are considerably higher than those previously reported in the literature. An interesting outcome is that the results of LIOAS determination agree with those of LFP within the confidence interval.
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: Gómez, María L. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Bertolotti, Sonia Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; 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
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
description The triplet quantum yield of the dyes safranine and phenosafranine was determined in methanol and acetonitrile by laser flash photolysis (LFP) and laser induced opto-acoustic spectroscopy (LIOAS). The excited singlet properties of both dyes were also determined in the two solvents. The LFP determination of the triplet yield was carried out by actinometric determination of the product ΦTεT and independent estimation of εT by the singlet depletion method and by energy transfer using anthracene as energy donor. The results of the three methodologies coincide within the experimental error. The values of ΦT are in the range 0.21-0.50, and in the case of phenosafranine are considerably higher than those previously reported in the literature. An interesting outcome is that the results of LIOAS determination agree with those of LFP within the confidence interval.
publishDate 2005
dc.date.none.fl_str_mv 2005-07
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/11336/94151
Broglia, Martin Federico; Gómez, María L; Bertolotti, Sonia Graciela; Montejano, Hernan Alfredo; Previtali, Carlos Mario; Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy; Elsevier Science Sa; Journal of Photochemistry and Photobiology A: Chemistry; 173; 2; 7-2005; 115-120
1010-6030
CONICET Digital
CONICET
url http://hdl.handle.net/11336/94151
identifier_str_mv Broglia, Martin Federico; Gómez, María L; Bertolotti, Sonia Graciela; Montejano, Hernan Alfredo; Previtali, Carlos Mario; Photophysical properties of safranine and phenosafranine. A comparative study by laser flash photolysis and laser induced optoacoustic spectroscopy; Elsevier Science Sa; Journal of Photochemistry and Photobiology A: Chemistry; 173; 2; 7-2005; 115-120
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/S1010603005000158
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotochem.2005.01.010
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
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score 12.982451

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