Two new 2,5-diarylthiazolo[5,4-d]thiazole derivatives bearing ethylene oxide moieties were synthesized. Their photophysical and electrochemical properties as well as binding properties towards various metal ions were examined. Thiazole derivative 1 showed large fluorescent enhancements with Cr 3 and Al 3. On the other hand, thiazole derivative 2 displayed a selective fluorescent change with Cr 3 among the metal ions examined. As far as we are aware of, these are the first examples of thiazolothiazole derivatives as fluorescent chemosensors for metal ions.
Bibliographical noteFunding Information:
This work was supported by National Research Foundation of Korea Grant funded by the Korean Government ( 2011-0020450 , 2011-0001334 ) and WCU program ( R31-2008-000-10010-0 ). This work was also supported by the Ewha Global Top 5 Grant 2011 of Ewha Womans University . Mass spectral data were obtained from the Korea Basic Science Institute on a Jeol JMS 700 high resolution mass spectrometer.
- Fluorescent chemosensors
- Fluorescent probe
- Ratiometric sensor
- Sensing Aluminium ion
- Sensing chromium ion