Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes

Autores
Vergara, Monica Mercedes; García Posse, Mónica Ema; Fagalde, Florencia; Katz, Néstor Eduardo
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Two novel mixed-valent ruthenium complexes, of formulae [(tpy)(bpy)RuII(pz)RuIII(edta)]+ and [(CN)4RuII(bpz)RuIII(edta)]3- (where tpy = 2,2′:6′,2″-terpyridine, bpy = 2,2′-bipyridine, pz = pyrazine, bpz = 2,2′-bipyrazine, edta = ethylenediaminetetraacetate), were prepared and spectroscopically characterized in aqueous solutions and as solid salts with suitable counterions. For comparison purposes, two new ruthenium complexes: a dinuclear species, of formula [(CN)4RuII(bpz)RuII (NH3)5], and a trinuclear species, of formula {(CN)4RuII(bpz)[RuII (NH3)5]2}2+, were also prepared and characterized in aqueous solutions. From spectral data of metal-to-metal charge transfer (MMCT) absorption bands, a Hush analysis was made, and the reorganization energies for the intramolecular electron transfers were calculated. A dramatic change in these values was disclosed when comparing both mixed- valent species, which can be explained on the basis of the influence exerted by the 'innocent' co-ligands (polypyridines or cyanides) bonded to the ruthenium centers. This tuning is an important factor in devising molecular devices for energy conversion. © 2002 Elsevier Science Ltd. All rights reserved.
Fil: Vergara, Monica Mercedes. 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: García Posse, Mónica Ema. 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. 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. 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
Materia
Energy Conversion
Intramolecular Electron Transfer
Inverted Region
Mixed-Valence
Reorganization Energies
Ruthenium Complexes
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:11336/62219
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/62219
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium ComplexesVergara, Monica MercedesGarcía Posse, Mónica EmaFagalde, FlorenciaKatz, Néstor EduardoEnergy ConversionIntramolecular Electron TransferInverted RegionMixed-ValenceReorganization EnergiesRuthenium Complexeshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Two novel mixed-valent ruthenium complexes, of formulae [(tpy)(bpy)RuII(pz)RuIII(edta)]+ and [(CN)4RuII(bpz)RuIII(edta)]3- (where tpy = 2,2′:6′,2″-terpyridine, bpy = 2,2′-bipyridine, pz = pyrazine, bpz = 2,2′-bipyrazine, edta = ethylenediaminetetraacetate), were prepared and spectroscopically characterized in aqueous solutions and as solid salts with suitable counterions. For comparison purposes, two new ruthenium complexes: a dinuclear species, of formula [(CN)4RuII(bpz)RuII (NH3)5], and a trinuclear species, of formula {(CN)4RuII(bpz)[RuII (NH3)5]2}2+, were also prepared and characterized in aqueous solutions. From spectral data of metal-to-metal charge transfer (MMCT) absorption bands, a Hush analysis was made, and the reorganization energies for the intramolecular electron transfers were calculated. A dramatic change in these values was disclosed when comparing both mixed- valent species, which can be explained on the basis of the influence exerted by the 'innocent' co-ligands (polypyridines or cyanides) bonded to the ruthenium centers. This tuning is an important factor in devising molecular devices for energy conversion. © 2002 Elsevier Science Ltd. All rights reserved.Fil: Vergara, Monica Mercedes. 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: García Posse, Mónica Ema. 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. 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. 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; ArgentinaPergamon-Elsevier Science Ltd2003-02info: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/11336/62219Vergara, Monica Mercedes; García Posse, Mónica Ema; Fagalde, Florencia; Katz, Néstor Eduardo; Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes; Pergamon-Elsevier Science Ltd; Polyhedron; 22; 3; 2-2003; 465-4710277-5387CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0277538702013682info:eu-repo/semantics/altIdentifier/doi/10.1016/S0277-5387(02)01368-2info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:26Zoai:ri.conicet.gov.ar:11336/62219instacron: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 09:36:26.747CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes
title Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes
spellingShingle Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes
Vergara, Monica Mercedes
Energy Conversion
Intramolecular Electron Transfer
Inverted Region
Mixed-Valence
Reorganization Energies
Ruthenium Complexes
title_short Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes
title_full Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes
title_fullStr Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes
title_full_unstemmed Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes
title_sort Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes
dc.creator.none.fl_str_mv Vergara, Monica Mercedes
García Posse, Mónica Ema
Fagalde, Florencia
Katz, Néstor Eduardo
author Vergara, Monica Mercedes
author_facet Vergara, Monica Mercedes
García Posse, Mónica Ema
Fagalde, Florencia
Katz, Néstor Eduardo
author_role author
author2 García Posse, Mónica Ema
Fagalde, Florencia
Katz, Néstor Eduardo
author2_role author
author
author
dc.subject.none.fl_str_mv Energy Conversion
Intramolecular Electron Transfer
Inverted Region
Mixed-Valence
Reorganization Energies
Ruthenium Complexes
topic Energy Conversion
Intramolecular Electron Transfer
Inverted Region
Mixed-Valence
Reorganization Energies
Ruthenium Complexes
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Two novel mixed-valent ruthenium complexes, of formulae [(tpy)(bpy)RuII(pz)RuIII(edta)]+ and [(CN)4RuII(bpz)RuIII(edta)]3- (where tpy = 2,2′:6′,2″-terpyridine, bpy = 2,2′-bipyridine, pz = pyrazine, bpz = 2,2′-bipyrazine, edta = ethylenediaminetetraacetate), were prepared and spectroscopically characterized in aqueous solutions and as solid salts with suitable counterions. For comparison purposes, two new ruthenium complexes: a dinuclear species, of formula [(CN)4RuII(bpz)RuII (NH3)5], and a trinuclear species, of formula {(CN)4RuII(bpz)[RuII (NH3)5]2}2+, were also prepared and characterized in aqueous solutions. From spectral data of metal-to-metal charge transfer (MMCT) absorption bands, a Hush analysis was made, and the reorganization energies for the intramolecular electron transfers were calculated. A dramatic change in these values was disclosed when comparing both mixed- valent species, which can be explained on the basis of the influence exerted by the 'innocent' co-ligands (polypyridines or cyanides) bonded to the ruthenium centers. This tuning is an important factor in devising molecular devices for energy conversion. © 2002 Elsevier Science Ltd. All rights reserved.
Fil: Vergara, Monica Mercedes. 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: García Posse, Mónica Ema. 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. 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. 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
description Two novel mixed-valent ruthenium complexes, of formulae [(tpy)(bpy)RuII(pz)RuIII(edta)]+ and [(CN)4RuII(bpz)RuIII(edta)]3- (where tpy = 2,2′:6′,2″-terpyridine, bpy = 2,2′-bipyridine, pz = pyrazine, bpz = 2,2′-bipyrazine, edta = ethylenediaminetetraacetate), were prepared and spectroscopically characterized in aqueous solutions and as solid salts with suitable counterions. For comparison purposes, two new ruthenium complexes: a dinuclear species, of formula [(CN)4RuII(bpz)RuII (NH3)5], and a trinuclear species, of formula {(CN)4RuII(bpz)[RuII (NH3)5]2}2+, were also prepared and characterized in aqueous solutions. From spectral data of metal-to-metal charge transfer (MMCT) absorption bands, a Hush analysis was made, and the reorganization energies for the intramolecular electron transfers were calculated. A dramatic change in these values was disclosed when comparing both mixed- valent species, which can be explained on the basis of the influence exerted by the 'innocent' co-ligands (polypyridines or cyanides) bonded to the ruthenium centers. This tuning is an important factor in devising molecular devices for energy conversion. © 2002 Elsevier Science Ltd. All rights reserved.
publishDate 2003
dc.date.none.fl_str_mv 2003-02
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/11336/62219
Vergara, Monica Mercedes; García Posse, Mónica Ema; Fagalde, Florencia; Katz, Néstor Eduardo; Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes; Pergamon-Elsevier Science Ltd; Polyhedron; 22; 3; 2-2003; 465-471
0277-5387
CONICET Digital
CONICET
url http://hdl.handle.net/11336/62219
identifier_str_mv Vergara, Monica Mercedes; García Posse, Mónica Ema; Fagalde, Florencia; Katz, Néstor Eduardo; Tuning of the Reorganization Energies by Innocent Co-ligands in Novel Mixed-Valent Dinuclear Ruthenium Complexes; Pergamon-Elsevier Science Ltd; Polyhedron; 22; 3; 2-2003; 465-471
0277-5387
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/S0277538702013682
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0277-5387(02)01368-2
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 Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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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