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Issue 5, 2012
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Energy transfer from a rhodamine antenna to a ruthenium–bipyridine center

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Abstract

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.

Graphical abstract: Energy transfer from a rhodamine antenna to a ruthenium–bipyridine center

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Article information


Submitted
30 Dec 2011
Accepted
03 Feb 2012
First published
08 Mar 2012

Photochem. Photobiol. Sci., 2012,11, 843-847
Article type
Paper

Energy transfer from a rhodamine antenna to a ruthenium–bipyridine center

O. Filevich, B. García-Acosta and R. Etchenique, Photochem. Photobiol. Sci., 2012, 11, 843
DOI: 10.1039/C2PP05415A

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