A near-infrared fluorescent chemodosimeter for silver(I) ion based on an expanded porphyrin

Xunjin Zhu, Shitao Fu, Wai Kwok Wong, Wai Yeung Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

45 Citations (Scopus)


An expanded porphyrin [26]hexaphyrin( was exploited as a fluorescent chemodosimeter for Ag+ions with high sensitivity and selectivity via near-infrared luminescence above 900 nm, a region that is free from optical interference in the visible wavelength range induced by the commonly used matrix and other organic compounds. The association constant for the Ag+-porphyrin complexation was evaluated by spectroscopic titration method to be 7.24 × 1010M-1.
Original languageEnglish
Pages (from-to)1843-1846
Number of pages4
JournalTetrahedron Letters
Issue number11
Publication statusPublished - 10 Mar 2008
Externally publishedYes


  • Luminescence
  • Porphyrins
  • Sensors
  • Silver
  • Transition metals

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

Cite this