Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties

We report the synthesis, structure and properties of the cyanide-bridged dinuclear complex ions [Ru(L)(bpy)(μ-NC)M(CN) 5] 2-/- (L = tpy, 2,2′;6′,2′′-terpyridine, or tpm, tris(1-pyrazolyl)methane, bpy = 2,2′-bipyridine, M = Fe(ii), Fe(iii), Cr(iii)) and the related monomers [Ru(L)(bpy)X] 2+ (X = CN -...

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Autores principales: Cadranel, Alejandro, Albores, Pablo, Baraldo Victorica, Luis Mario
Publicado: 2012
Materias:
Bipyridines
Cyanide bridge
Dinuclear
Dinuclear complex
Efficient energy transfer
Electron transfer quenching
Polypyridines
Red emissions
Structure and properties
Terpyridines
Chromium compounds
Energy transfer
Iron compounds
Methane
Cyanides
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14779226_v41_n17_p5343_Cadranel
http://hdl.handle.net/20.500.12110/paper_14779226_v41_n17_p5343_Cadranel
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_14779226_v41_n17_p5343_Cadranel
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spelling paper:paper_14779226_v41_n17_p5343_Cadranel2023-06-08T16:18:12Z Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties Cadranel, Alejandro Albores, Pablo Baraldo Victorica, Luis Mario Bipyridines Cyanide bridge Dinuclear Dinuclear complex Efficient energy transfer Electron transfer quenching Polypyridines Red emissions Structure and properties Terpyridines Chromium compounds Energy transfer Iron compounds Methane Cyanides We report the synthesis, structure and properties of the cyanide-bridged dinuclear complex ions [Ru(L)(bpy)(μ-NC)M(CN) 5] 2-/- (L = tpy, 2,2′;6′,2′′-terpyridine, or tpm, tris(1-pyrazolyl)methane, bpy = 2,2′-bipyridine, M = Fe(ii), Fe(iii), Cr(iii)) and the related monomers [Ru(L)(bpy)X] 2+ (X = CN - and NCS -). All the monomeric compounds are weak MLCT emitters (λ = 650-715 nm, ≈ 10 -4). In the Fe(ii) and Cr(iii) dinuclear systems, the cyanide bridge promotes efficient energy transfer between the Ru-centered MLCT state and a Fe(ii)- or Cr(iii)-centered d-d state, which results either in a complete quenching of luminescence or in a narrow red emission (λ ≈ 820 nm, ≈ 10 -3) respectively. In the case of Fe(iii) dinuclear systems, an electron transfer quenching process is also likely to occur. © 2012 Royal Society of Chemistry. Fil:Cadranel, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Alborés, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Baraldo, L.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14779226_v41_n17_p5343_Cadranel http://hdl.handle.net/20.500.12110/paper_14779226_v41_n17_p5343_Cadranel
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Bipyridines
Cyanide bridge
Dinuclear
Dinuclear complex
Efficient energy transfer
Electron transfer quenching
Polypyridines
Red emissions
Structure and properties
Terpyridines
Chromium compounds
Energy transfer
Iron compounds
Methane
Cyanides
spellingShingle Bipyridines
Cyanide bridge
Dinuclear
Dinuclear complex
Efficient energy transfer
Electron transfer quenching
Polypyridines
Red emissions
Structure and properties
Terpyridines
Chromium compounds
Energy transfer
Iron compounds
Methane
Cyanides
Cadranel, Alejandro
Albores, Pablo
Baraldo Victorica, Luis Mario
Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties
topic_facet Bipyridines
Cyanide bridge
Dinuclear
Dinuclear complex
Efficient energy transfer
Electron transfer quenching
Polypyridines
Red emissions
Structure and properties
Terpyridines
Chromium compounds
Energy transfer
Iron compounds
Methane
Cyanides
description We report the synthesis, structure and properties of the cyanide-bridged dinuclear complex ions [Ru(L)(bpy)(μ-NC)M(CN) 5] 2-/- (L = tpy, 2,2′;6′,2′′-terpyridine, or tpm, tris(1-pyrazolyl)methane, bpy = 2,2′-bipyridine, M = Fe(ii), Fe(iii), Cr(iii)) and the related monomers [Ru(L)(bpy)X] 2+ (X = CN - and NCS -). All the monomeric compounds are weak MLCT emitters (λ = 650-715 nm, ≈ 10 -4). In the Fe(ii) and Cr(iii) dinuclear systems, the cyanide bridge promotes efficient energy transfer between the Ru-centered MLCT state and a Fe(ii)- or Cr(iii)-centered d-d state, which results either in a complete quenching of luminescence or in a narrow red emission (λ ≈ 820 nm, ≈ 10 -3) respectively. In the case of Fe(iii) dinuclear systems, an electron transfer quenching process is also likely to occur. © 2012 Royal Society of Chemistry.
author Cadranel, Alejandro
Albores, Pablo
Baraldo Victorica, Luis Mario
author_facet Cadranel, Alejandro
Albores, Pablo
Baraldo Victorica, Luis Mario
author_sort Cadranel, Alejandro
title Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties
title_short Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties
title_full Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties
title_fullStr Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties
title_full_unstemmed Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties
title_sort efficient energy transfer via the cyanide bridge in dinuclear complexes containing ru(ii) polypyridine moieties
publishDate 2012
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14779226_v41_n17_p5343_Cadranel
http://hdl.handle.net/20.500.12110/paper_14779226_v41_n17_p5343_Cadranel
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AT alborespablo efficientenergytransferviathecyanidebridgeindinuclearcomplexescontainingruiipolypyridinemoieties
AT baraldovictoricaluismario efficientenergytransferviathecyanidebridgeindinuclearcomplexescontainingruiipolypyridinemoieties
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