Highly sensitive cyanide anion detection with a coumarin–spiropyran conjugate as a fluorescent receptor

• DOI: 10.1039/c1cc10467e
• Publication Date: 2011-03-24T09:30:32Z
• Authors: Yasuhiro Shiraishi; Shigehiro Sumiya; Takayuki Hirai
• Keywords: Spiropyran; Conjugate

A coumarin-spiropyran conjugate (2) shows a CN(-)-selective fluorescence enhancement under UV irradiation. This enables accurate determination of very low levels CN(-) (>0.5 μM).