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

Авторы

  • 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

Ключевые слова:

carbazole, iron ion, Schiff base, fluorescence chemosensor.

Аннотация

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+.

Загрузки

Опубликован

2018-03-23

Выпуск

Том 54 № 2 (2018)

Раздел

Оригинальные статьи