A ratiometric fluorescent sensor for phosphates: Zn2+-enhanced ICT and ligand competition

Xiaojun Peng, Yongqian Xu, Shiguo Sun, Yunkou Wu, Jiangli Fan

Research output: Contribution to journalArticlepeer-review

97 Scopus citations


A pyrene-terpyridine-Zn conjugate has been synthesized and characterized, where Zn2+ acts as an electron acceptor to enhance molecular ICT with a large emission red-shift (>100 nm). It showed a ratiometric fluorescence change upon addition of phosphate anions in buffered aqueous solution. The selective response to phosphates or pyrophosphates involved ICT and ligand competition processes.

Original languageEnglish (US)
Pages (from-to)226-228
Number of pages3
JournalOrganic and Biomolecular Chemistry
Issue number2
StatePublished - Jan 1 2007

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry


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