AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif

Autores
de Candia, Ariel Gustavo; Singh, Priti; Kaim, Wolfgang; Slep, Leonardo Daniel
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The new linear homotrinuclear compound frans-[CIRuII(py) 4(NC)RuII(py)4(CN)RuII(py) 4(NO)](PF6)4 was prepared by reaction between the nitro complex trans-[(NC)RuII(py)4(CN)Ru II(py)4(NO2)]+ and the solvento complex obtained by reaction between [CIRuII(py)4(NO)] 3+ and N3- in acetone. The trans-[CIRu II(py)4 (NC)RuII(py)4(CN)Ru II(py)4(NO)]4+ ion (I) has been characterized by 1H NMR and IR spectroscopy (vN0 = 1919 cm -1). This species displays intense electronic absorptions in the visible region which can be assigned to donor-acceptor charge-transfer transitions (DACT) involving {RuNO}6-centered acceptor orbitals and donor orbitals located on the two different neighboring metal centers at ca. 6.7 and 12.6 Å distance from the metal in the {RuNO}6 fragment. Addition of OH- to I generated the nitro complex with a second-order rate constant of (12.5 ± 0.2) × 103 M-1 s-1 (25 ̊C). Cyclic oltammetry experiments complemented by spectroelectrochemistry in the UV-vis-NIR region reveal that I can be reversibly reduced at 0.49 or 0.20 V vs AgCI/Ag for acetonitrile and water, respectively, and oxidized at 0.71 or 0.57 V vs AgCI/Ag. The spectroscopic and spectroelectrochemical information (UV-vis-NIR, X-band EPR) supplemented with electronic structure computation (DFT) reveals that the one-electron reduction is centered on the nitrosyl moiety to yield a {RuNO}7 species, while oxidation occurs on the chlororuthenium side of the molecule. Both processes yield significant changes of the electronic spectra which are discussed in parallel with the electronic structure picture as obtained by DFT.
Fil: de Candia, Ariel Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Singh, Priti. Universität Stuttgart; Alemania
Fil: Kaim, Wolfgang. Universität Stuttgart; Alemania
Fil: Slep, Leonardo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Materia
Charge Transfer
Electronic Coupling
Nitrosyls
Nivel de accesibilidad
acceso abierto
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Consejo Nacional de Investigaciones Científicas y Técnicas
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network_name_str CONICET Digital (CONICET)
spelling AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motifde Candia, Ariel GustavoSingh, PritiKaim, WolfgangSlep, Leonardo DanielCharge TransferElectronic CouplingNitrosylshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The new linear homotrinuclear compound frans-[CIRuII(py) 4(NC)RuII(py)4(CN)RuII(py) 4(NO)](PF6)4 was prepared by reaction between the nitro complex trans-[(NC)RuII(py)4(CN)Ru II(py)4(NO2)]+ and the solvento complex obtained by reaction between [CIRuII(py)4(NO)] 3+ and N3- in acetone. The trans-[CIRu II(py)4 (NC)RuII(py)4(CN)Ru II(py)4(NO)]4+ ion (I) has been characterized by 1H NMR and IR spectroscopy (vN0 = 1919 cm -1). This species displays intense electronic absorptions in the visible region which can be assigned to donor-acceptor charge-transfer transitions (DACT) involving {RuNO}6-centered acceptor orbitals and donor orbitals located on the two different neighboring metal centers at ca. 6.7 and 12.6 Å distance from the metal in the {RuNO}6 fragment. Addition of OH- to I generated the nitro complex with a second-order rate constant of (12.5 ± 0.2) × 103 M-1 s-1 (25 ̊C). Cyclic oltammetry experiments complemented by spectroelectrochemistry in the UV-vis-NIR region reveal that I can be reversibly reduced at 0.49 or 0.20 V vs AgCI/Ag for acetonitrile and water, respectively, and oxidized at 0.71 or 0.57 V vs AgCI/Ag. The spectroscopic and spectroelectrochemical information (UV-vis-NIR, X-band EPR) supplemented with electronic structure computation (DFT) reveals that the one-electron reduction is centered on the nitrosyl moiety to yield a {RuNO}7 species, while oxidation occurs on the chlororuthenium side of the molecule. Both processes yield significant changes of the electronic spectra which are discussed in parallel with the electronic structure picture as obtained by DFT.Fil: de Candia, Ariel Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Singh, Priti. Universität Stuttgart; AlemaniaFil: Kaim, Wolfgang. Universität Stuttgart; AlemaniaFil: Slep, Leonardo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaAmerican Chemical Society2009-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/74134de Candia, Ariel Gustavo; Singh, Priti; Kaim, Wolfgang; Slep, Leonardo Daniel; AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif; American Chemical Society; Inorganic Chemistry; 48; 2; 1-2009; 565-5730020-1669CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/ic801347dinfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/ic801347dinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:55Zoai:ri.conicet.gov.ar:11336/74134instacron: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 09:47:55.738CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif
title AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif
spellingShingle AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif
de Candia, Ariel Gustavo
Charge Transfer
Electronic Coupling
Nitrosyls
title_short AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif
title_full AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif
title_fullStr AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif
title_full_unstemmed AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif
title_sort AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif
dc.creator.none.fl_str_mv de Candia, Ariel Gustavo
Singh, Priti
Kaim, Wolfgang
Slep, Leonardo Daniel
author de Candia, Ariel Gustavo
author_facet de Candia, Ariel Gustavo
Singh, Priti
Kaim, Wolfgang
Slep, Leonardo Daniel
author_role author
author2 Singh, Priti
Kaim, Wolfgang
Slep, Leonardo Daniel
author2_role author
author
author
dc.subject.none.fl_str_mv Charge Transfer
Electronic Coupling
Nitrosyls
topic Charge Transfer
Electronic Coupling
Nitrosyls
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 new linear homotrinuclear compound frans-[CIRuII(py) 4(NC)RuII(py)4(CN)RuII(py) 4(NO)](PF6)4 was prepared by reaction between the nitro complex trans-[(NC)RuII(py)4(CN)Ru II(py)4(NO2)]+ and the solvento complex obtained by reaction between [CIRuII(py)4(NO)] 3+ and N3- in acetone. The trans-[CIRu II(py)4 (NC)RuII(py)4(CN)Ru II(py)4(NO)]4+ ion (I) has been characterized by 1H NMR and IR spectroscopy (vN0 = 1919 cm -1). This species displays intense electronic absorptions in the visible region which can be assigned to donor-acceptor charge-transfer transitions (DACT) involving {RuNO}6-centered acceptor orbitals and donor orbitals located on the two different neighboring metal centers at ca. 6.7 and 12.6 Å distance from the metal in the {RuNO}6 fragment. Addition of OH- to I generated the nitro complex with a second-order rate constant of (12.5 ± 0.2) × 103 M-1 s-1 (25 ̊C). Cyclic oltammetry experiments complemented by spectroelectrochemistry in the UV-vis-NIR region reveal that I can be reversibly reduced at 0.49 or 0.20 V vs AgCI/Ag for acetonitrile and water, respectively, and oxidized at 0.71 or 0.57 V vs AgCI/Ag. The spectroscopic and spectroelectrochemical information (UV-vis-NIR, X-band EPR) supplemented with electronic structure computation (DFT) reveals that the one-electron reduction is centered on the nitrosyl moiety to yield a {RuNO}7 species, while oxidation occurs on the chlororuthenium side of the molecule. Both processes yield significant changes of the electronic spectra which are discussed in parallel with the electronic structure picture as obtained by DFT.
Fil: de Candia, Ariel Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Singh, Priti. Universität Stuttgart; Alemania
Fil: Kaim, Wolfgang. Universität Stuttgart; Alemania
Fil: Slep, Leonardo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
description The new linear homotrinuclear compound frans-[CIRuII(py) 4(NC)RuII(py)4(CN)RuII(py) 4(NO)](PF6)4 was prepared by reaction between the nitro complex trans-[(NC)RuII(py)4(CN)Ru II(py)4(NO2)]+ and the solvento complex obtained by reaction between [CIRuII(py)4(NO)] 3+ and N3- in acetone. The trans-[CIRu II(py)4 (NC)RuII(py)4(CN)Ru II(py)4(NO)]4+ ion (I) has been characterized by 1H NMR and IR spectroscopy (vN0 = 1919 cm -1). This species displays intense electronic absorptions in the visible region which can be assigned to donor-acceptor charge-transfer transitions (DACT) involving {RuNO}6-centered acceptor orbitals and donor orbitals located on the two different neighboring metal centers at ca. 6.7 and 12.6 Å distance from the metal in the {RuNO}6 fragment. Addition of OH- to I generated the nitro complex with a second-order rate constant of (12.5 ± 0.2) × 103 M-1 s-1 (25 ̊C). Cyclic oltammetry experiments complemented by spectroelectrochemistry in the UV-vis-NIR region reveal that I can be reversibly reduced at 0.49 or 0.20 V vs AgCI/Ag for acetonitrile and water, respectively, and oxidized at 0.71 or 0.57 V vs AgCI/Ag. The spectroscopic and spectroelectrochemical information (UV-vis-NIR, X-band EPR) supplemented with electronic structure computation (DFT) reveals that the one-electron reduction is centered on the nitrosyl moiety to yield a {RuNO}7 species, while oxidation occurs on the chlororuthenium side of the molecule. Both processes yield significant changes of the electronic spectra which are discussed in parallel with the electronic structure picture as obtained by DFT.
publishDate 2009
dc.date.none.fl_str_mv 2009-01
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/11336/74134
de Candia, Ariel Gustavo; Singh, Priti; Kaim, Wolfgang; Slep, Leonardo Daniel; AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif; American Chemical Society; Inorganic Chemistry; 48; 2; 1-2009; 565-573
0020-1669
CONICET Digital
CONICET
url http://hdl.handle.net/11336/74134
identifier_str_mv de Candia, Ariel Gustavo; Singh, Priti; Kaim, Wolfgang; Slep, Leonardo Daniel; AII-frans-[CIRuII(py)4(NC)RuII(py) 4(CN)RuII(py)4(N0)](PF6) 4: a redox-active 2-donor/1-acceptor system based on the electrophilic {RuNO}6 motif; American Chemical Society; Inorganic Chemistry; 48; 2; 1-2009; 565-573
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/doi/10.1021/ic801347d
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/ic801347d
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
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 13.070432

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