INQUIMAE   12526
INSTITUTO DE QUIMICA, FISICA DE LOS MATERIALES, MEDIOAMBIENTE Y ENERGIA
Unidad Ejecutora - UE
artículos
Título:
Energy transfer from a rhodamine antenna to a ruthenium–bipyridine center
Autor/es:
OSCAR FILEVICH; BEATRIZ GARCIA ACOSTA; ROBERTO ETCHENIQUE
Revista:
Photochemical and Photobiological Sciences
Editorial:
ROYAL SOC CHEMISTRY
Referencias:
Lugar: CAMBRIDGE; Año: 2012 vol. 11 p. 843 - 843
ISSN:
1474-905X
Resumen:
The coordination of a modified rhodamine B (Rhod) to a bis-bipyridine ruthenium (II) (Ru–bpy) phototrigger complex enables a photodissociation reaction at longer wavelengths through enhanced absorption of green light (532 nm). The very high molar absorptivity of rhodamine (105 M−1 cm−1) and the high quantum efficiency of Förster resonance energy transfer (FRET) from rhodamine to the Ru–bpy center (0.84) result in an unusually high photosensitivity and uncaging cross-section of the Ru–bpy–rhodamine complex at longer wavelengths.