Cu2+-selective ratiometric and "off-on" sensor based on the rhodamine derivative bearing pyrene group

Ying Zhou, Fang Wang, Youngmee Kim, Sung-Jin Kim, Juyoung Yoon
Organic Letters 2009 October 1, 11 (19): 4442-5
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.

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