- A near-infrared fluorescence turn-on sensor for sulfide anions.
A near-infrared fluorescence turn-on sensor for sulfide anions.
Organic letters (2011-08-04)
Xiaowei Cao, Weiying Lin, Longwei He
PMID21809838
초록
The first NIR fluorescent sensor for sulfide anions was constructed based on the displacement approach. The sensing ensemble is composed of a cyanine dye, a piperazine linker, an 8-aminoquinoline ligand, and copper. The favorable attributes of the sensor include a large NIR fluorescence turn-on signal in aqueous ethanol, high sensitivity, and high selectivity. The transition-metal-based displacement strategy may open an avenue for development of NIR fluorescent sensors for a wide variety of anion targets.
MATERIALS