Benzimidazole-based fluorescent sensors for Cr 3+ and their resultant complexes for sensing HSO 4 - and F -

Preeti Saluja, Navneet Kaur, Narinder Singh, Doo Ok Jang

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


A benzimidazole-based receptor that selectively recognized Cr 3+ without interference from other metal ions was synthesized in this study. The resultant Cr-complex recognized HSO4- and F - via two approaches. HSO4- ions bound to the metal center, causing changes in the fluorescent spectra at different wavelengths, whereas F - ions displaced Cr 3+, thereby switching ON the fluorescent spectra at the same wavelength.

Original languageEnglish
Pages (from-to)8551-8556
Number of pages6
Issue number41
Publication statusPublished - 2012 Oct 14

Bibliographical note

Funding Information:
This work was supported by the India-Korea Joint Program of Cooperation in Science & Technology (2011-0027710) and by an 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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