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Cu<sup>2+</sup>-Selective Ratiometric and “Off-On” Sensor Based on the Rhodamine Derivative Bearing Pyrene Group

Organic Letters · 2009 · Vol. 11(19) · pp. 4442–4445

Ying Zhou✉(Ewha Womans University)Fang Wang(Ewha Womans University)Youngmee Kim(Ewha Womans University)Sung‐Jin Kim(Ewha Womans University)Juyoung Yoon(Ewha Womans University)

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Abstract

A new rhodamine-based derivative bearing a pyrene group (PRC) was synthesized as a ratiometric and "off-on" chemosensor for Cu(2+). PRC displayed a selective and chelation enhanced ratiometric fluorescence change and colorimetric change with Cu(2+) among the metal ions examined.

Molecular Sensors and Ion Detection Luminescence and Fluorescent Materials Analytical Chemistry and SensorsChemistryPyreneDerivative (finance)RhodamineRhodamine BChelationMetal ions in aqueous solutionFluorescenceMetalPhotochemistry