A benzthiazole-based multifunctional chemosensor was designed with siderophores like binding sites for recognition of Fe3+ and both hydrogen bond donor and acceptor binding sites for oxyanion HSO4. The sensor recognizes Fe3+ selectively through enhancement of fluorescence emission intensity at 440 nm and recognizes HSO4- through a bathochromic shift in UV-vis spectra from 315 nm to 365 nm with clear isosbestic points at 345 nm and 395 nm. The recognition of both Fe3+ and HSO4 is free from the interference from the other cations and anions, respectively.
Bibliographical noteFunding Information:
This work was supported by the India–Korea Joint Program of Cooperation in Science &Technology ( 2011-0027710 ) and by a CSIR project grant (01(2417)/10 EMR-II). P.S. is thankful to UGC India for a research fellowship.
All Science Journal Classification (ASJC) codes
- Drug Discovery
- Organic Chemistry