Benzthiazole-based multifunctional chemosensor: Fluorescent recognition of Fe3+ and chromogenic recognition of HSO4

Vimal K. Bhardwaj, Preeti Saluja, Geeta Hundal, M. S. Hundal, Narinder Singh, Doo Ok Jang

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1606-1610
Number of pages5
Issue number5
Publication statusPublished - 2013 Feb 4

Bibliographical note

Funding 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

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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