Energy transfer from a rhodamine antenna to a ruthenium-bipyridine center
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 hi...
Guardado en:
| Publicado: |
2012
|
|---|---|
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1474905X_v11_n5_p843_Filevich http://hdl.handle.net/20.500.12110/paper_1474905X_v11_n5_p843_Filevich |
| Aporte de: |
| Sumario: | 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. © The Royal Society of Chemistry and Owner Societies 2012. |
|---|