A new fluoride ion colorimetric sensor based on dipyrrolemethanes

作者：You Jung Min; Jeong Haesang; Seo Hyungran; Jeon Seungwon^*

来源：Sensors and Actuators B: Chemical , 2010, 146(1): 160-164.

DOI：10.1016/j.snb.2010.02.042

• Anion sensors
• Fluoride
• Dipyrrolemethane
• Colorimetric sensor

Colorimetric fluoride ion sensors were developed using dipyrrolemethanes 1-4 synthesized from the reaction of aldehydes and pyrrole. The sensors showed a color change upon addition of fluoride ion with a substantial bathochromic shift. No significant color change was observed upon addition of any other anions. The significant changes of absorption bands and color show that chemosensor is selective toward fluoride ion over other anions such as Br(-), Cl(-), NO(3)(-), HSO(4)(-), SO(4)(2-), AcO(-) and H(2)PO(4)(-). The binding constants of sensors with fluoride ion were obtained in the order of similar to 10(2) which is enough to detect the fluoride ion.

• 出版日期2010-4-8