An azo dye-coupled tripodal chromogenic sensor for cyanide

作者：Lee Doo Youn; Singh Narinder; Satyender Apuri; Jang Doo Ok^*

来源：Tetrahedron Letters, 2011, 52(51): 6919-6922.

DOI：10.1016/j.tetlet.2011.10.061

• Chromogenic
• Tripodal receptor
• Cyanide
• Chemosensor
• Azo dye

A tripodal receptor bearing phenol as a hydrogen bond donor site and azo dye as the signaling subunit was synthesized. The receptor had a high binding affinity for CN- as signaled by the change in the color of a solution of sensor 4 upon addition of CN-. Using UV-Vis spectroscopy, the system can be used to quantify 0-19 x 10(-5) mol L-1 of CN-, and the sensor was found to successfully function in the presence of other anions.

• 出版日期2011-12-21