Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7149339 | Sensors and Actuators B: Chemical | 2012 | 9 Pages |
Abstract
A new diketopyrrolopyrrole derivative (DPP-4) with two triphenylamine groups was developed as red emission fluorescent sensor for fluoride ion. The fluorescent changes of DPP-4 interact with fluoride ion exhibiting obvious solvent-dependent properties. In acetone, ratiometric channel was activated upon addition of n-Bu4NF, and more than 50Â nm red shift from 590Â nm to 641Â nm was obtained and accompanied with emission color from orange to purple red. In acetonitrile, addition of fluoride caused 50-fold enhancement at 631Â nm in emission spectra which be defined as a “turn on” mode. Interestingly, using fluoride and HSO4â anions as two chemical inputs and absorption or fluorescence as output, compound DPP-4 is demonstrated to be a parallel double-INH logic gate in acetonitrile solutions.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Yi Qu, Sanyin Qu, Lin Yang, Jianli Hua, Dahui Qu,