Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand

Autores
Mellace, María G.; Fagalde, Florencia; Katz, Néstor Eduardo; Crivelli, Irma G.; Delgadillo, Alvaro; Leiva, Ana María; Loeb, Bárbara; Garland, María Teresa; Baggio, Ricardo Fortunato
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
New dinuclear asymmetric ruthenium complexes of the type [(bpy)2Ru(5-CNphen)Ru(NH3)5] 4+/5+ (bpy ) 2,2′-bipyridine; 5-CNphen ) 5-cyano-1,10-phenanthroline) have been synthesized and characterized by spectroscopic, electrochemical, and photophysical techniques. The structure of the cation [(bpy)2Ru(5-CNphen)Ru(NH3)5] 4+ has been determined by X-ray diffraction. The mononuclear precursor [Ru(bpy)2(5-CNphen)]2+ has also been prepared and studied; while its properties as a photosensitizer are similar to those of [Ru(bpy)3] 2+, its luminescence at room temperature is quenched by a factor of 5 in the mixed-valent species [(bpy)2RuII(5-CNphen)RuIII(NH3)5] 5+, pointing to the occurrence of intramolecular electron-transfer processes that follow light excitation. From spectral data for the metal-to-metal charge-transfer transition RuII f RuIII in this latter complex, a slight electronic interaction (HAB ) 190 cm-1) is disclosed between both metallic centers through the bridging 5-CNphen.
Fil: Mellace, María G.. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; 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: Crivelli, Irma G.. Universidad de Chile; Chile
Fil: Delgadillo, Alvaro. Universidad de Chile; Chile
Fil: Leiva, Ana María. Universidad de Chile; Chile
Fil: Loeb, Bárbara. Universidad de Chile; Chile
Fil: Garland, María Teresa. Comisión Nacional de Energía Atómica; Argentina
Fil: Baggio, Ricardo Fortunato. Comisión Nacional de Energía Atómica; Argentina
Materia
RUTHENIUM COMPLEXES
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:11336/105639
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/105639
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging LigandMellace, María G.Fagalde, FlorenciaKatz, Néstor EduardoCrivelli, Irma G.Delgadillo, AlvaroLeiva, Ana MaríaLoeb, BárbaraGarland, María TeresaBaggio, Ricardo FortunatoRUTHENIUM COMPLEXESMIXED VALENT COMPOUNDhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1New dinuclear asymmetric ruthenium complexes of the type [(bpy)2Ru(5-CNphen)Ru(NH3)5] 4+/5+ (bpy ) 2,2′-bipyridine; 5-CNphen ) 5-cyano-1,10-phenanthroline) have been synthesized and characterized by spectroscopic, electrochemical, and photophysical techniques. The structure of the cation [(bpy)2Ru(5-CNphen)Ru(NH3)5] 4+ has been determined by X-ray diffraction. The mononuclear precursor [Ru(bpy)2(5-CNphen)]2+ has also been prepared and studied; while its properties as a photosensitizer are similar to those of [Ru(bpy)3] 2+, its luminescence at room temperature is quenched by a factor of 5 in the mixed-valent species [(bpy)2RuII(5-CNphen)RuIII(NH3)5] 5+, pointing to the occurrence of intramolecular electron-transfer processes that follow light excitation. From spectral data for the metal-to-metal charge-transfer transition RuII f RuIII in this latter complex, a slight electronic interaction (HAB ) 190 cm-1) is disclosed between both metallic centers through the bridging 5-CNphen.Fil: Mellace, María G.. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; 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: Crivelli, Irma G.. Universidad de Chile; ChileFil: Delgadillo, Alvaro. Universidad de Chile; ChileFil: Leiva, Ana María. Universidad de Chile; ChileFil: Loeb, Bárbara. Universidad de Chile; ChileFil: Garland, María Teresa. Comisión Nacional de Energía Atómica; ArgentinaFil: Baggio, Ricardo Fortunato. Comisión Nacional de Energía Atómica; ArgentinaAmerican Chemical Society2004-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/105639Mellace, María G.; Fagalde, Florencia; Katz, Néstor Eduardo; Crivelli, Irma G.; Delgadillo, Alvaro; et al.; Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand; American Chemical Society; Inorganic Chemistry; 43; 3; 2-2004; 1100-11070020-16691520-510XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/ic035198dinfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/ic035198dinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:19:08Zoai:ri.conicet.gov.ar:11336/105639instacron: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:34982025-09-10 13:19:08.676CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand
title Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand
spellingShingle Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand
Mellace, María G.
RUTHENIUM COMPLEXES
MIXED VALENT COMPOUND
title_short Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand
title_full Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand
title_fullStr Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand
title_full_unstemmed Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand
title_sort Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand
dc.creator.none.fl_str_mv Mellace, María G.
Fagalde, Florencia
Katz, Néstor Eduardo
Crivelli, Irma G.
Delgadillo, Alvaro
Leiva, Ana María
Loeb, Bárbara
Garland, María Teresa
Baggio, Ricardo Fortunato
author Mellace, María G.
author_facet Mellace, María G.
Fagalde, Florencia
Katz, Néstor Eduardo
Crivelli, Irma G.
Delgadillo, Alvaro
Leiva, Ana María
Loeb, Bárbara
Garland, María Teresa
Baggio, Ricardo Fortunato
author_role author
author2 Fagalde, Florencia
Katz, Néstor Eduardo
Crivelli, Irma G.
Delgadillo, Alvaro
Leiva, Ana María
Loeb, Bárbara
Garland, María Teresa
Baggio, Ricardo Fortunato
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv RUTHENIUM COMPLEXES
MIXED VALENT COMPOUND
topic RUTHENIUM COMPLEXES
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 dinuclear asymmetric ruthenium complexes of the type [(bpy)2Ru(5-CNphen)Ru(NH3)5] 4+/5+ (bpy ) 2,2′-bipyridine; 5-CNphen ) 5-cyano-1,10-phenanthroline) have been synthesized and characterized by spectroscopic, electrochemical, and photophysical techniques. The structure of the cation [(bpy)2Ru(5-CNphen)Ru(NH3)5] 4+ has been determined by X-ray diffraction. The mononuclear precursor [Ru(bpy)2(5-CNphen)]2+ has also been prepared and studied; while its properties as a photosensitizer are similar to those of [Ru(bpy)3] 2+, its luminescence at room temperature is quenched by a factor of 5 in the mixed-valent species [(bpy)2RuII(5-CNphen)RuIII(NH3)5] 5+, pointing to the occurrence of intramolecular electron-transfer processes that follow light excitation. From spectral data for the metal-to-metal charge-transfer transition RuII f RuIII in this latter complex, a slight electronic interaction (HAB ) 190 cm-1) is disclosed between both metallic centers through the bridging 5-CNphen.
Fil: Mellace, María G.. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química Física; 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: Crivelli, Irma G.. Universidad de Chile; Chile
Fil: Delgadillo, Alvaro. Universidad de Chile; Chile
Fil: Leiva, Ana María. Universidad de Chile; Chile
Fil: Loeb, Bárbara. Universidad de Chile; Chile
Fil: Garland, María Teresa. Comisión Nacional de Energía Atómica; Argentina
Fil: Baggio, Ricardo Fortunato. Comisión Nacional de Energía Atómica; Argentina
description New dinuclear asymmetric ruthenium complexes of the type [(bpy)2Ru(5-CNphen)Ru(NH3)5] 4+/5+ (bpy ) 2,2′-bipyridine; 5-CNphen ) 5-cyano-1,10-phenanthroline) have been synthesized and characterized by spectroscopic, electrochemical, and photophysical techniques. The structure of the cation [(bpy)2Ru(5-CNphen)Ru(NH3)5] 4+ has been determined by X-ray diffraction. The mononuclear precursor [Ru(bpy)2(5-CNphen)]2+ has also been prepared and studied; while its properties as a photosensitizer are similar to those of [Ru(bpy)3] 2+, its luminescence at room temperature is quenched by a factor of 5 in the mixed-valent species [(bpy)2RuII(5-CNphen)RuIII(NH3)5] 5+, pointing to the occurrence of intramolecular electron-transfer processes that follow light excitation. From spectral data for the metal-to-metal charge-transfer transition RuII f RuIII in this latter complex, a slight electronic interaction (HAB ) 190 cm-1) is disclosed between both metallic centers through the bridging 5-CNphen.
publishDate 2004
dc.date.none.fl_str_mv 2004-02
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/11336/105639
Mellace, María G.; Fagalde, Florencia; Katz, Néstor Eduardo; Crivelli, Irma G.; Delgadillo, Alvaro; et al.; Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand; American Chemical Society; Inorganic Chemistry; 43; 3; 2-2004; 1100-1107
0020-1669
1520-510X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/105639
identifier_str_mv Mellace, María G.; Fagalde, Florencia; Katz, Néstor Eduardo; Crivelli, Irma G.; Delgadillo, Alvaro; et al.; Dinuclear Asymmetric Ruthenium Complexes with 5-Cyano-1,10-phenanthroline as a Bridging Ligand; American Chemical Society; Inorganic Chemistry; 43; 3; 2-2004; 1100-1107
0020-1669
1520-510X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/ic035198d
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/ic035198d
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
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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 12.48226

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