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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/94151
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:47:12Zoai: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:34982025-09-29 09:47:12.923CONICET 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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844613471018156032 |
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13.070432 |