Selective Sensing of Iron by Pyrrolo[2,3-c]Quinolines

  • Togiti Uday Kumar
  • Shweta Pawar
  • Amit Nag
  • Anupam Bhattacharya


This paper reports development of an iron sensor, 2-(3H-pyrrolo[2,3-c]quinolin-4-yl)aniline (APQ). The fluorophore facilitates micromolar detection of Fe3+/Fe2+ in the presence of various cations, including well-known interfering cations Co2+and Cu2+ by the process of fluorescence quenching.

Graphical Abstract


Pyrrolo-quinoline Iron sensing ESIPT Quenching Logic gate 



T.U.K. thanks CSIR and BITS-Pilani for PhD fellowship. S.V.P. thanks DST- inspire (IF150605) scheme for providing senior research fellowship. A.N. thanks DST-SERB (SB/FT/CS-129/2013) for financial support. A.B. thanks Council for Scientific and Industrial Research, New Delhi for research grant. Authors gratefully acknowledge support from Department of Science and Technology, India for the FIST grant SR/FST/CSI-240/2012.

Supplementary material

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of ChemistryBirla Institute of Technology and Science-PilaniHyderabadIndia

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