A highly selective turn-on fluorescent chemosensor for copper(II) ion

Shu-Pao Wu*, Tzu Hao Wang, Shi Rong Liu

*Corresponding author for this work

Research output: Contribution to journalArticle

75 Scopus citations

Abstract

A new pyrene derivative (1) containing a diaminomaleonitrile moiety exhibits high selectivity for Cu2+ detection. Significant fluorescence enhancement was observed with chemosensor 1 in the presence of Cu2+. However, the metal ions Ag+, Ca2+, Cd2+, Co2+, Fe2+, Fe3+, Hg 2+, Mg2+, Mn2+, Ni2+, Pb 2+, and Zn2+ produced only minor changes in fluorescence values for the system. The apparent association constant (Ka) of Cu2+ binding in chemosensor 1 was found to be 5.55×10 3 M-1. The maximum fluorescence enhancement caused by Cu2+ binding in chemosensor 1 was observed over the pH range 5-7.5.

Original languageEnglish
Pages (from-to)9655-9658
Number of pages4
JournalTetrahedron
Volume66
Issue number51
DOIs
StatePublished - 18 Dec 2010

Keywords

  • Cu(II)
  • Diaminomaleonitrile
  • Fluorescent chemosensor
  • Pyrene

Fingerprint Dive into the research topics of 'A highly selective turn-on fluorescent chemosensor for copper(II) ion'. Together they form a unique fingerprint.

  • Cite this