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Abstract:

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.

Registro:

Documento: Artículo
Título:Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties
Autor:Cadranel, A.; Alborés, P.; Yamazaki, S.; Kleiman, V.D.; Baraldo, L.M.
Filiación:Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, United States
Palabras clave: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
Año:2012
Volumen:41
Número:17
Página de inicio:5343
Página de fin:5350
DOI: http://dx.doi.org/10.1039/c2dt11869f
Título revista:Dalton Transactions
Título revista abreviado:Dalton Trans.
ISSN:14779226
CODEN:DTARA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14779226_v41_n17_p5343_Cadranel

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Citas:

---------- APA ----------
Cadranel, A., Alborés, P., Yamazaki, S., Kleiman, V.D. & Baraldo, L.M. (2012) . Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties. Dalton Transactions, 41(17), 5343-5350.
http://dx.doi.org/10.1039/c2dt11869f
---------- CHICAGO ----------
Cadranel, A., Alborés, P., Yamazaki, S., Kleiman, V.D., Baraldo, L.M. "Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties" . Dalton Transactions 41, no. 17 (2012) : 5343-5350.
http://dx.doi.org/10.1039/c2dt11869f
---------- MLA ----------
Cadranel, A., Alborés, P., Yamazaki, S., Kleiman, V.D., Baraldo, L.M. "Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties" . Dalton Transactions, vol. 41, no. 17, 2012, pp. 5343-5350.
http://dx.doi.org/10.1039/c2dt11869f
---------- VANCOUVER ----------
Cadranel, A., Alborés, P., Yamazaki, S., Kleiman, V.D., Baraldo, L.M. Efficient energy transfer via the cyanide bridge in dinuclear complexes containing Ru(ii) polypyridine moieties. Dalton Trans. 2012;41(17):5343-5350.
http://dx.doi.org/10.1039/c2dt11869f