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Abstract:

The complex [Ru(bpy)(AN)4]2+ (bpy = 2,2′-bipyridyl, AN = acetonitrile) has a Ru(II) → π*bpy MLCT band at 388 nm. Upon irradiation on this absorption band, the compound undergoes total regioselective photocleavage yielding complexes fac-[Ru(bpy)(AN)3(H2O)]2+ and trans-[Ru(bpy)(AN)2(H2O)2]2+ in two consecutive steps with quantum yields of 0.43 and 0.09, respectively. This behavior is a consequence of the stronger σ-donor ability of the bpy nitrogens that determines the orbital ordering and therefore the nature of the lowest lying 3d-d state responsible for the photochemistry. The two-step photoreaction, which can be followed by UV-vis and NMR spectra, provides a quantitative path to the preparation of trans-polypyridine species with potentially interesting photochemical properties. © 2008 American Chemical Society.

Registro:

Documento: Artículo
Título:Ruthenium(II) 2,2′-bipyridyl tetrakis acetonitrile undergoes selective axial photocleavage
Autor:Petroni, A.; Slep, L.D.; Etchenique, R.
Filiación:Departamento de Química Inorgánica, Analítica Y Química Física, INQUIMAE, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
Año:2008
Volumen:47
Número:3
Página de inicio:951
Página de fin:956
DOI: http://dx.doi.org/10.1021/ic7018204
Título revista:Inorganic Chemistry
Título revista abreviado:Inorg. Chem.
ISSN:00201669
CODEN:INOCA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201669_v47_n3_p951_Petroni

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Citas:

---------- APA ----------
Petroni, A., Slep, L.D. & Etchenique, R. (2008) . Ruthenium(II) 2,2′-bipyridyl tetrakis acetonitrile undergoes selective axial photocleavage. Inorganic Chemistry, 47(3), 951-956.
http://dx.doi.org/10.1021/ic7018204
---------- CHICAGO ----------
Petroni, A., Slep, L.D., Etchenique, R. "Ruthenium(II) 2,2′-bipyridyl tetrakis acetonitrile undergoes selective axial photocleavage" . Inorganic Chemistry 47, no. 3 (2008) : 951-956.
http://dx.doi.org/10.1021/ic7018204
---------- MLA ----------
Petroni, A., Slep, L.D., Etchenique, R. "Ruthenium(II) 2,2′-bipyridyl tetrakis acetonitrile undergoes selective axial photocleavage" . Inorganic Chemistry, vol. 47, no. 3, 2008, pp. 951-956.
http://dx.doi.org/10.1021/ic7018204
---------- VANCOUVER ----------
Petroni, A., Slep, L.D., Etchenique, R. Ruthenium(II) 2,2′-bipyridyl tetrakis acetonitrile undergoes selective axial photocleavage. Inorg. Chem. 2008;47(3):951-956.
http://dx.doi.org/10.1021/ic7018204