NEW SELECTIVE ''ON-OFF'' FLUORESCENCE CHEMOSENSOR BASED ON CARBAZOLE SCHIFF BASE FOR Fe3+ DETECTION

Authors

  • Jun Yin Faculty of Chemistry, Northeast Normal University
  • Yi He College of Chemistry, Jilin University
  • Guang Wang Faculty of Chemistry, Northeast Normal University

DOI:

https://doi.org/10.1007/4316

Keywords:

carbazole, iron ion, Schiff base, fluorescence chemosensor.

Abstract

A new double Schiff base, carbazole, and diaminomaleonitrile-based chemosensor for Fe3+ with high sensitivity and selectivity was designed and synthesized. Addition of only Fe3+ ions induced the fluorescence quenching of the chemosensor in DMF solution. The chemosensor formed a 1:1 complex with Fe3+ with the high binding constant of 7.98·10–6 M–1. The chemosensor displayed low detection limit (3.75·10–8 M) and fast response time (15 s) to Fe3+.

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Published

2018-03-23

Issue

Vol. 54 No. 2 (2018)

Section

Original Papers