Highly sensitive and selective colorimetric and off-on fluorescent probe for Cu(2+) based on rhodamine derivative

Chunwei Yu, Jun Zhang, Rui Wang, Lingxin Chen
Organic & Biomolecular Chemistry 2010 December 7, 8 (23): 5277-9
A new probe for Cu(2+) based on the Cu(2+)- induced reversible ring-opening mechanism of the rhodamine spirolactam was described. It displayed a highly selective and sensitive "turn-on" fluorescent and colorimetric response toward Cu(2+).

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