pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine

Autores
Cattaneo, Mauricio; Fagalde, Florencia; Katz, Néstor Eduardo; Borsarelli, Claudio Darío; Parella, Teodor
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
New chromophore-quencher rhenium(I) tricarbonyls, of formulae [Re(4,4’-X2-bpy)(CO)3(PCA)]+, [(4,4’-X2-bpy)(CO)3Re(μ-PCA)Re(CO)3(4,4’-X2-bpy)]2+, and [(4,4’-X2-bpy)(CO)3ReI-(μ-PCA)-RuII(NH3)5]3+, with X = Ph or CO2Me and PCA = 4-pyridinealdazine, have been synthesized as PF6- salts andcharacterized by spectroscopic, electrochemical and photophysical techniques. Contrasting to previously reported species with X = Me or H, these complexes emit at room temperature in CH3CN. The recovery of luminescence can thus be ascribed to the change of energy levels induced by adding electron-withdrawing substituents to the 2,2´-bipyridine ring, since the emissive ReII(X2bpy-) excited state becomes much lower in energy than ReII(PCA-) non-emissive excited state. For the mononuclear and the symmetric dinuclear rhenium(I) complexes with X = CO2Me in aqueous solutions, consecutive protonation of both pyridinic and imine N atoms of PCA cause unusual bell-shaped curves of both the absorption and the emission intensities vs. pH, because of opposite effects on the electronic delocalization of PCA. Therefore, the latter property can be employed to devise novel luminescent sensors of acidity of the on-off-on type. The corresponding unsymmetric dinuclear complexes, of formula [(4,4’-X2-bpy)(CO)3ReI(μ- PCA)RuIII(NH3)5]4+, were obtained in situ by oxidizing the [ReI,RuII] precursors in CH3CN solution; from spectral and electrochemical measurements, the values of the metal-to-metal electronic coupling elements have been determined.
Fil: Cattaneo, Mauricio. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Fagalde, Florencia. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Katz, Néstor Eduardo. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Borsarelli, Claudio Darío. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias. Instituto de Ciencias Químicas; Argentina. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; Argentina
Fil: Parella, Teodor. Servei de Rmn; España
Materia
Donor-Accepto Systems
Rhenium
Photochemistry
Molecular Devices
Mixed Valent Compound
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:11336/83289
Acceder
id CONICETDig_6bd1df95e6c17a3d194304a9542412bb
oai_identifier_str oai:ri.conicet.gov.ar:11336/83289
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazineCattaneo, MauricioFagalde, FlorenciaKatz, Néstor EduardoBorsarelli, Claudio DaríoParella, TeodorDonor-Accepto SystemsRheniumPhotochemistryMolecular DevicesMixed Valent Compoundhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1New chromophore-quencher rhenium(I) tricarbonyls, of formulae [Re(4,4’-X2-bpy)(CO)3(PCA)]+, [(4,4’-X2-bpy)(CO)3Re(μ-PCA)Re(CO)3(4,4’-X2-bpy)]2+, and [(4,4’-X2-bpy)(CO)3ReI-(μ-PCA)-RuII(NH3)5]3+, with X = Ph or CO2Me and PCA = 4-pyridinealdazine, have been synthesized as PF6- salts andcharacterized by spectroscopic, electrochemical and photophysical techniques. Contrasting to previously reported species with X = Me or H, these complexes emit at room temperature in CH3CN. The recovery of luminescence can thus be ascribed to the change of energy levels induced by adding electron-withdrawing substituents to the 2,2´-bipyridine ring, since the emissive ReII(X2bpy-) excited state becomes much lower in energy than ReII(PCA-) non-emissive excited state. For the mononuclear and the symmetric dinuclear rhenium(I) complexes with X = CO2Me in aqueous solutions, consecutive protonation of both pyridinic and imine N atoms of PCA cause unusual bell-shaped curves of both the absorption and the emission intensities vs. pH, because of opposite effects on the electronic delocalization of PCA. Therefore, the latter property can be employed to devise novel luminescent sensors of acidity of the on-off-on type. The corresponding unsymmetric dinuclear complexes, of formula [(4,4’-X2-bpy)(CO)3ReI(μ- PCA)RuIII(NH3)5]4+, were obtained in situ by oxidizing the [ReI,RuII] precursors in CH3CN solution; from spectral and electrochemical measurements, the values of the metal-to-metal electronic coupling elements have been determined.Fil: Cattaneo, Mauricio. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; ArgentinaFil: Fagalde, Florencia. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; ArgentinaFil: Katz, Néstor Eduardo. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; ArgentinaFil: Borsarelli, Claudio Darío. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias. Instituto de Ciencias Químicas; Argentina. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; ArgentinaFil: Parella, Teodor. Servei de Rmn; EspañaWiley VCH Verlag2007-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/83289Cattaneo, Mauricio; Fagalde, Florencia; Katz, Néstor Eduardo; Borsarelli, Claudio Darío; Parella, Teodor; pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine; Wiley VCH Verlag; European Journal of Inorganic Chemistry; 34; 12-2007; 5323-53321434-1948CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.200790089info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1002/ejic.200790089info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:25Zoai:ri.conicet.gov.ar:11336/83289instacron: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 09:36:25.672CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine
title pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine
spellingShingle pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine
Cattaneo, Mauricio
Donor-Accepto Systems
Rhenium
Photochemistry
Molecular Devices
Mixed Valent Compound
title_short pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine
title_full pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine
title_fullStr pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine
title_full_unstemmed pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine
title_sort pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine
dc.creator.none.fl_str_mv Cattaneo, Mauricio
Fagalde, Florencia
Katz, Néstor Eduardo
Borsarelli, Claudio Darío
Parella, Teodor
author Cattaneo, Mauricio
author_facet Cattaneo, Mauricio
Fagalde, Florencia
Katz, Néstor Eduardo
Borsarelli, Claudio Darío
Parella, Teodor
author_role author
author2 Fagalde, Florencia
Katz, Néstor Eduardo
Borsarelli, Claudio Darío
Parella, Teodor
author2_role author
author
author
author
dc.subject.none.fl_str_mv Donor-Accepto Systems
Rhenium
Photochemistry
Molecular Devices
Mixed Valent Compound
topic Donor-Accepto Systems
Rhenium
Photochemistry
Molecular Devices
Mixed Valent Compound
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv New chromophore-quencher rhenium(I) tricarbonyls, of formulae [Re(4,4’-X2-bpy)(CO)3(PCA)]+, [(4,4’-X2-bpy)(CO)3Re(μ-PCA)Re(CO)3(4,4’-X2-bpy)]2+, and [(4,4’-X2-bpy)(CO)3ReI-(μ-PCA)-RuII(NH3)5]3+, with X = Ph or CO2Me and PCA = 4-pyridinealdazine, have been synthesized as PF6- salts andcharacterized by spectroscopic, electrochemical and photophysical techniques. Contrasting to previously reported species with X = Me or H, these complexes emit at room temperature in CH3CN. The recovery of luminescence can thus be ascribed to the change of energy levels induced by adding electron-withdrawing substituents to the 2,2´-bipyridine ring, since the emissive ReII(X2bpy-) excited state becomes much lower in energy than ReII(PCA-) non-emissive excited state. For the mononuclear and the symmetric dinuclear rhenium(I) complexes with X = CO2Me in aqueous solutions, consecutive protonation of both pyridinic and imine N atoms of PCA cause unusual bell-shaped curves of both the absorption and the emission intensities vs. pH, because of opposite effects on the electronic delocalization of PCA. Therefore, the latter property can be employed to devise novel luminescent sensors of acidity of the on-off-on type. The corresponding unsymmetric dinuclear complexes, of formula [(4,4’-X2-bpy)(CO)3ReI(μ- PCA)RuIII(NH3)5]4+, were obtained in situ by oxidizing the [ReI,RuII] precursors in CH3CN solution; from spectral and electrochemical measurements, the values of the metal-to-metal electronic coupling elements have been determined.
Fil: Cattaneo, Mauricio. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Fagalde, Florencia. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Katz, Néstor Eduardo. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Borsarelli, Claudio Darío. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias. Instituto de Ciencias Químicas; Argentina. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del Noa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Bionanotecnología del Noa; Argentina
Fil: Parella, Teodor. Servei de Rmn; España
description New chromophore-quencher rhenium(I) tricarbonyls, of formulae [Re(4,4’-X2-bpy)(CO)3(PCA)]+, [(4,4’-X2-bpy)(CO)3Re(μ-PCA)Re(CO)3(4,4’-X2-bpy)]2+, and [(4,4’-X2-bpy)(CO)3ReI-(μ-PCA)-RuII(NH3)5]3+, with X = Ph or CO2Me and PCA = 4-pyridinealdazine, have been synthesized as PF6- salts andcharacterized by spectroscopic, electrochemical and photophysical techniques. Contrasting to previously reported species with X = Me or H, these complexes emit at room temperature in CH3CN. The recovery of luminescence can thus be ascribed to the change of energy levels induced by adding electron-withdrawing substituents to the 2,2´-bipyridine ring, since the emissive ReII(X2bpy-) excited state becomes much lower in energy than ReII(PCA-) non-emissive excited state. For the mononuclear and the symmetric dinuclear rhenium(I) complexes with X = CO2Me in aqueous solutions, consecutive protonation of both pyridinic and imine N atoms of PCA cause unusual bell-shaped curves of both the absorption and the emission intensities vs. pH, because of opposite effects on the electronic delocalization of PCA. Therefore, the latter property can be employed to devise novel luminescent sensors of acidity of the on-off-on type. The corresponding unsymmetric dinuclear complexes, of formula [(4,4’-X2-bpy)(CO)3ReI(μ- PCA)RuIII(NH3)5]4+, were obtained in situ by oxidizing the [ReI,RuII] precursors in CH3CN solution; from spectral and electrochemical measurements, the values of the metal-to-metal electronic coupling elements have been determined.
publishDate 2007
dc.date.none.fl_str_mv 2007-12
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/11336/83289
Cattaneo, Mauricio; Fagalde, Florencia; Katz, Néstor Eduardo; Borsarelli, Claudio Darío; Parella, Teodor; pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine; Wiley VCH Verlag; European Journal of Inorganic Chemistry; 34; 12-2007; 5323-5332
1434-1948
CONICET Digital
CONICET
url http://hdl.handle.net/11336/83289
identifier_str_mv Cattaneo, Mauricio; Fagalde, Florencia; Katz, Néstor Eduardo; Borsarelli, Claudio Darío; Parella, Teodor; pH-induced luminescence changes of chromophore-quencher tricarbonylpolypyridylrhenium(I) complexes with 4-pyridinealdazine; Wiley VCH Verlag; European Journal of Inorganic Chemistry; 34; 12-2007; 5323-5332
1434-1948
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://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.200790089
info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1002/ejic.200790089
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
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dc.publisher.none.fl_str_mv Wiley VCH Verlag
publisher.none.fl_str_mv Wiley VCH Verlag
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 13.070432

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