Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand
- Autores
- Mecchia Ortiz, Juan Hugo; Vega, Nadia Celeste; Comedi, David Mario; Tirado, Monica Cecilia; Romero, Isabel; Fontrodona, Xavier; Parella, Teodor; Moran Vieyra, Faustino Eduardo; Borsarelli, Claudio Darío; Katz, Néstor Eduardo
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report in this work the synthesis and spectroscopic, electrochemical, spectroelectrochemical, and photophysical characterization of a novel series of ruthenium polypyridyl complexes with 4-methyl-2,2′-bipyridine-4′- carbonitrile (Mebpy-CN) as an auxiliary ligand of general formula [Ru(bpy) 3-x(Mebpy-CN)x](PF6)2 (x = 1-3) (with bpy = 2,2′-bipyridine). A significant increase in the lifetime and quantum yield of emission of the lowest 3MLCT excited state is disclosed when going from x = 1 to x = 3, evidencing an improvement of the photosensitizing properties with respect to [Ru(bpy)3](PF 6)2. Furthermore, quenching by molecular oxygen of 3MLCT excited states of the three complexes produced singlet molecular oxygen (1O2) with quantum yield values higher than that of [Ru(bpy)3]2+ in CH3CN. The structure of the complex with x = 1 has been determined by X-ray diffraction. The photoconductivity of ZnO nanowires covered with this same complex is increased by an order of magnitude, pointing to its feasibility as a component of a DSSC. A new dinuclear complex with Mebpy-CN as a bridging ligand has also been prepared and characterized by physicochemical techniques. The derived mixed-valent species of formula [(bpy)2RuII(Mebpy-CN) RuIII(NH3)5]5+ displays a considerable metal-metal electronic coupling due to the delocalization effect of a nitrile group in the 4′ position of the bpy ring. © 2013 American Chemical Society.
Fil: Mecchia Ortiz, Juan Hugo. 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: Vega, Nadia Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina
Fil: Comedi, David Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina
Fil: Tirado, Monica Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina
Fil: Romero, Isabel. Universidad de Girona; España
Fil: Fontrodona, Xavier. Universidad de Girona; España
Fil: Parella, Teodor. Universitat Autònoma de Barcelona; España
Fil: Moran Vieyra, Faustino Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; Argentina
Fil: Borsarelli, Claudio Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; 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
-
RUTHENIUM COMPLEXES
NANOWIRES
PHOTOSENSITIZATION
SINGLET OXYGEN - 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:11336/78129
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Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligandMecchia Ortiz, Juan HugoVega, Nadia CelesteComedi, David MarioTirado, Monica CeciliaRomero, IsabelFontrodona, XavierParella, TeodorMoran Vieyra, Faustino EduardoBorsarelli, Claudio DaríoKatz, Néstor EduardoRUTHENIUM COMPLEXESNANOWIRESPHOTOSENSITIZATIONSINGLET OXYGENhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1We report in this work the synthesis and spectroscopic, electrochemical, spectroelectrochemical, and photophysical characterization of a novel series of ruthenium polypyridyl complexes with 4-methyl-2,2′-bipyridine-4′- carbonitrile (Mebpy-CN) as an auxiliary ligand of general formula [Ru(bpy) 3-x(Mebpy-CN)x](PF6)2 (x = 1-3) (with bpy = 2,2′-bipyridine). A significant increase in the lifetime and quantum yield of emission of the lowest 3MLCT excited state is disclosed when going from x = 1 to x = 3, evidencing an improvement of the photosensitizing properties with respect to [Ru(bpy)3](PF 6)2. Furthermore, quenching by molecular oxygen of 3MLCT excited states of the three complexes produced singlet molecular oxygen (1O2) with quantum yield values higher than that of [Ru(bpy)3]2+ in CH3CN. The structure of the complex with x = 1 has been determined by X-ray diffraction. The photoconductivity of ZnO nanowires covered with this same complex is increased by an order of magnitude, pointing to its feasibility as a component of a DSSC. A new dinuclear complex with Mebpy-CN as a bridging ligand has also been prepared and characterized by physicochemical techniques. The derived mixed-valent species of formula [(bpy)2RuII(Mebpy-CN) RuIII(NH3)5]5+ displays a considerable metal-metal electronic coupling due to the delocalization effect of a nitrile group in the 4′ position of the bpy ring. © 2013 American Chemical Society.Fil: Mecchia Ortiz, Juan Hugo. 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: Vega, Nadia Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; ArgentinaFil: Comedi, David Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; ArgentinaFil: Tirado, Monica Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; ArgentinaFil: Romero, Isabel. Universidad de Girona; EspañaFil: Fontrodona, Xavier. Universidad de Girona; EspañaFil: Parella, Teodor. Universitat Autònoma de Barcelona; EspañaFil: Moran Vieyra, Faustino Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; ArgentinaFil: Borsarelli, Claudio Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; 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; ArgentinaAmerican Chemical Society2013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/78129Mecchia Ortiz, Juan Hugo; Vega, Nadia Celeste; Comedi, David Mario; Tirado, Monica Cecilia; Romero, Isabel; et al.; Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand; American Chemical Society; Inorganic Chemistry; 52; 9; 5-2013; 4950-49620020-1669CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/ic302594binfo:eu-repo/semantics/altIdentifier/doi/10.1021/ic302594binfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:50:02Zoai:ri.conicet.gov.ar:11336/78129instacron: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 09:50:02.595CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand |
title |
Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand |
spellingShingle |
Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand Mecchia Ortiz, Juan Hugo RUTHENIUM COMPLEXES NANOWIRES PHOTOSENSITIZATION SINGLET OXYGEN |
title_short |
Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand |
title_full |
Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand |
title_fullStr |
Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand |
title_full_unstemmed |
Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand |
title_sort |
Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand |
dc.creator.none.fl_str_mv |
Mecchia Ortiz, Juan Hugo Vega, Nadia Celeste Comedi, David Mario Tirado, Monica Cecilia Romero, Isabel Fontrodona, Xavier Parella, Teodor Moran Vieyra, Faustino Eduardo Borsarelli, Claudio Darío Katz, Néstor Eduardo |
author |
Mecchia Ortiz, Juan Hugo |
author_facet |
Mecchia Ortiz, Juan Hugo Vega, Nadia Celeste Comedi, David Mario Tirado, Monica Cecilia Romero, Isabel Fontrodona, Xavier Parella, Teodor Moran Vieyra, Faustino Eduardo Borsarelli, Claudio Darío Katz, Néstor Eduardo |
author_role |
author |
author2 |
Vega, Nadia Celeste Comedi, David Mario Tirado, Monica Cecilia Romero, Isabel Fontrodona, Xavier Parella, Teodor Moran Vieyra, Faustino Eduardo Borsarelli, Claudio Darío Katz, Néstor Eduardo |
author2_role |
author author author author author author author author author |
dc.subject.none.fl_str_mv |
RUTHENIUM COMPLEXES NANOWIRES PHOTOSENSITIZATION SINGLET OXYGEN |
topic |
RUTHENIUM COMPLEXES NANOWIRES PHOTOSENSITIZATION SINGLET OXYGEN |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We report in this work the synthesis and spectroscopic, electrochemical, spectroelectrochemical, and photophysical characterization of a novel series of ruthenium polypyridyl complexes with 4-methyl-2,2′-bipyridine-4′- carbonitrile (Mebpy-CN) as an auxiliary ligand of general formula [Ru(bpy) 3-x(Mebpy-CN)x](PF6)2 (x = 1-3) (with bpy = 2,2′-bipyridine). A significant increase in the lifetime and quantum yield of emission of the lowest 3MLCT excited state is disclosed when going from x = 1 to x = 3, evidencing an improvement of the photosensitizing properties with respect to [Ru(bpy)3](PF 6)2. Furthermore, quenching by molecular oxygen of 3MLCT excited states of the three complexes produced singlet molecular oxygen (1O2) with quantum yield values higher than that of [Ru(bpy)3]2+ in CH3CN. The structure of the complex with x = 1 has been determined by X-ray diffraction. The photoconductivity of ZnO nanowires covered with this same complex is increased by an order of magnitude, pointing to its feasibility as a component of a DSSC. A new dinuclear complex with Mebpy-CN as a bridging ligand has also been prepared and characterized by physicochemical techniques. The derived mixed-valent species of formula [(bpy)2RuII(Mebpy-CN) RuIII(NH3)5]5+ displays a considerable metal-metal electronic coupling due to the delocalization effect of a nitrile group in the 4′ position of the bpy ring. © 2013 American Chemical Society. Fil: Mecchia Ortiz, Juan Hugo. 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: Vega, Nadia Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina Fil: Comedi, David Mario. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina Fil: Tirado, Monica Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina Fil: Romero, Isabel. Universidad de Girona; España Fil: Fontrodona, Xavier. Universidad de Girona; España Fil: Parella, Teodor. Universitat Autònoma de Barcelona; España Fil: Moran Vieyra, Faustino Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; Argentina Fil: Borsarelli, Claudio Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; 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 |
We report in this work the synthesis and spectroscopic, electrochemical, spectroelectrochemical, and photophysical characterization of a novel series of ruthenium polypyridyl complexes with 4-methyl-2,2′-bipyridine-4′- carbonitrile (Mebpy-CN) as an auxiliary ligand of general formula [Ru(bpy) 3-x(Mebpy-CN)x](PF6)2 (x = 1-3) (with bpy = 2,2′-bipyridine). A significant increase in the lifetime and quantum yield of emission of the lowest 3MLCT excited state is disclosed when going from x = 1 to x = 3, evidencing an improvement of the photosensitizing properties with respect to [Ru(bpy)3](PF 6)2. Furthermore, quenching by molecular oxygen of 3MLCT excited states of the three complexes produced singlet molecular oxygen (1O2) with quantum yield values higher than that of [Ru(bpy)3]2+ in CH3CN. The structure of the complex with x = 1 has been determined by X-ray diffraction. The photoconductivity of ZnO nanowires covered with this same complex is increased by an order of magnitude, pointing to its feasibility as a component of a DSSC. A new dinuclear complex with Mebpy-CN as a bridging ligand has also been prepared and characterized by physicochemical techniques. The derived mixed-valent species of formula [(bpy)2RuII(Mebpy-CN) RuIII(NH3)5]5+ displays a considerable metal-metal electronic coupling due to the delocalization effect of a nitrile group in the 4′ position of the bpy ring. © 2013 American Chemical Society. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-05 |
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/11336/78129 Mecchia Ortiz, Juan Hugo; Vega, Nadia Celeste; Comedi, David Mario; Tirado, Monica Cecilia; Romero, Isabel; et al.; Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand; American Chemical Society; Inorganic Chemistry; 52; 9; 5-2013; 4950-4962 0020-1669 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/78129 |
identifier_str_mv |
Mecchia Ortiz, Juan Hugo; Vega, Nadia Celeste; Comedi, David Mario; Tirado, Monica Cecilia; Romero, Isabel; et al.; Improving the photosensitizing properties of ruthenium polypyridyl complexes using 4-methyl-2,2′-bipyridine-4′-carbonitrile as an auxiliary ligand; American Chemical Society; Inorganic Chemistry; 52; 9; 5-2013; 4950-4962 0020-1669 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/ic302594b info:eu-repo/semantics/altIdentifier/doi/10.1021/ic302594b |
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 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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1844613544701591552 |
score |
13.070432 |