Complexation of 4,4′-di(tert-butyl)-5-ethynyl-2,2′-bithiazole with mercury(II) ion: Synthesis, structures and analytical applications

Li Liu, Yuk Wai Lam, Wai Yeung Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

37 Citations (Scopus)

Abstract

Two new mononuclear mercury(II) alkynyl complexes containing substituted bithiazole unit [R-CC-HgMe] (2) and [R-CC-Hg-CC-R] (3) (R = 4,4′-di(tert- butyl)-2,2′-bithiazol-5-yl) were prepared in good yields by mercuration of 4,4′-di(tert-butyl)-5-ethynyl-2,2′-bithiazole (1) at room temperature via the dehydrohalogenation reaction of MeHgCl and HgCl2with terminal acetylene R-CCH. The structures of the title compounds were characterized by NMR and IR spectroscopy, FAB mass spectrometry, X-ray crystallography and luminescence spectra. A new protocol for derivatization of inorganic and organic mercury(II) ions to mono- and dialkynyl mercury(II) compounds followed by extraction into dichloromethane is suggested, which can be effectively analyzed by HPLC technique using UV detection. The proposed procedure can offer a new opportunity for the simultaneous determination of inorganic Hg(II) and MeHg(II) in aqueous solutions.
Original languageEnglish
Pages (from-to)1092-1100
Number of pages9
JournalJournal of Organometallic Chemistry
Volume691
Issue number6
DOIs
Publication statusPublished - 1 Mar 2006
Externally publishedYes

Keywords

  • Alkynyl
  • Bithiazole
  • HPLC
  • Luminescence
  • Mercury

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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