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Photophysical characteristics and density functional theory calculations of indole 2-carboxylic acid in the presence of mercurous ions

  • Medha Rele
  • Sudhir Kapoor
  • Shweta Hedge
  • Sergej Naumov
  • Tulsi Mukherjee
Article

Abstract

Many photo-physical studies have been reported for the detection of Hg2+ ions. Here we present the effect of Hg 2 2+ ions on the absorption and fluorescence of indole-2-carboxylic acid (I2C). Experimental evidence, supported by density functional theory B3LYP/LANL2DZ/PCM, for the formation of a I2C-Hg 2 2+ complex, is reported for the first time. It was observed that I2C forms a ground-state complex with Hg 2 2+ ions in a ratio of 3:1. The possibility of I2C to be used as a selective novel chemical sensor for the spectrophotometric detection of mercurous ions is described.

Keywords

Fluorescence photo-induced electron transfer complex formation 

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Copyright information

© VSP 2006

Authors and Affiliations

  • Medha Rele
    • 1
  • Sudhir Kapoor
    • 1
  • Shweta Hedge
    • 2
  • Sergej Naumov
    • 3
  • Tulsi Mukherjee
    • 1
  1. 1.Radiation Chemistry & Chemical Dynamics DivisionBhabha Atomic Research CentreMumbaiIndia
  2. 2.Department of ChemistryUniversity of PunePuneIndia
  3. 3.Leibniz-Institut für OberflächenmodifizierungLeipzigGermany

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