Highly specific probe for ferric ions in aqueous solution based on 5, 6-dicarboxy-3h-benzoimidazol-1-ium nitrate

Zhengyuan Zhou, Kaimin Shih, Yue Peng Cai, Lap Szeto, Wing Tak Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)


The organic compound, 5, 6-dicarboxy-3H-benzoimidazol-1-ium nitrate (Hdcbii·NO3) (1), was synthesized by the reaction of 1H-benzoimidazole-5, 6-dicarboxylate (Hbidc) with nitric acid under hydrothermal conditions. The crystal structure of the compound shows abundant hydrogen bonds and π···π stacking interactions revealed by X-ray single crystal diffraction and FT-IR spectroscopy. This compound has high selectivity for ferric (Fe3+) ions in aqueous solution and shows strong potential for application as a fluorescent probe for ferric ions.
Original languageEnglish
Pages (from-to)1494-1498
Number of pages5
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Issue number7
Publication statusPublished - 1 Jan 2014
Externally publishedYes


  • 5,6-Dicarboxy-3H-benzoimidazol-1-ium nitrate
  • Ferric ions
  • Fluorescence
  • FT-IR spectroscopy
  • UV/Vis spectroscopy

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this