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Journal of Analytical Chemistry

, Volume 74, Issue 1, pp 87–92 | Cite as

A New Fluorenone-based Turn-on Fluorescent Al3+ Ion Sensor

  • S. E. Thangaraj
  • E. J. Antony
  • G. T. Selvan
  • P. M. Selvakumar
  • I. V. M. V. EnochEmail author
ARTICLES
  • 35 Downloads

Abstract

In this paper, we report a turn-on fluorescence sensing of Al3+ ion using a new fluorenone derivative. The imino derivative of 2-amino-9-fluorenone and mercapto-2-butanone is synthesized and characterized using IR, NMR, and mass spectral techniques. The fluorescence of the compound shows a large enhancement at the addition of Al3+ ions, and other metal ions show insignificant changes of the fluorescence. The stoichiometry and the binding constant of the complex are reported. The detection limit of the Al3+ determination by the fluorenone derivative is 5 × 10–8 M. A visible enhancement of color occurs on illumination of the fluorescent compound – Al3+ ion complex.

Keywords:

fluorenone thiol Al3+ ion sensing fluorescent chemosensor photoinduced electron transfer 

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • S. E. Thangaraj
    • 1
  • E. J. Antony
    • 1
  • G. T. Selvan
    • 2
  • P. M. Selvakumar
    • 2
  • I. V. M. V. Enoch
    • 1
    • 2
    Email author
  1. 1.Nanotoxicology Research Lab, Department of Nanoscience, Karunya Institute of Technology and Sciences (Karunya University)Tamil NaduIndia
  2. 2.Chemistry Research Lab, Department of Chemistry, Karunya Institute of Technology and Sciences (Karunya University), CoimbatoreTamil NaduIndia

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