Fluorescence turn-on probe for Hg2+ based on schiff base derivative containing sulfur

Jie Na Weng, Qun Bo Mei, Yuan Zhi Jiang, Bin Zhang, Juan Song, Qi Dan Ling, Qu Li Fan, Wei Huang

Research output: Contribution to journalArticlepeer-review

Abstract

A novel fluorescence turn-on probe based on a new schiff base derivative CzSB containing sulfur atoms is designed and prepared for detection of Hg2+ in the presence of other competing metal ions in acetonitrile. The addition of Hg2+ significantly enhances the fluorescence emission intensity of CzSB. The turn-on behavior of the probe is ascribed to the metal ion-induced conformational changes from the weak N-phenyl carbazole monomer emission to intensive excimer emission. The photophysical properties and Job plot of CzSB toward Hg2+ confirme a 1:2 (CzSB-Hg2+) binding mode and a possible binding mechanism.

Original languageEnglish
Pages (from-to)94-99
Number of pages6
JournalNanjing Youdian Daxue Xuebao (Ziran Kexue Ban)/Journal of Nanjing University of Posts and Telecommunications (Natural Science)
Volume34
Issue number2
StatePublished - Apr 2014
Externally publishedYes

Keywords

  • Chemosensor
  • Schiff base
  • Turn-on fluorescence probe

Fingerprint

Dive into the research topics of 'Fluorescence turn-on probe for Hg2+ based on schiff base derivative containing sulfur'. Together they form a unique fingerprint.

Cite this