Photoreduction of mercury(II) in aqueous solution in the presence of cyclohexene. Hydroxomercuration and two-stage photolysis

Ottó Horváth, Arnd Vogler

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Interaction of Hg2+ and cyclohexene in argon-saturated acidic aqueous solution leads to the formation of a hydroxomercurated compound characterized with an intense absorption band at 214 nm (ε = 1.0 × 104M-1 cm-1). This reaction proved to be reversible with an equilibrium constant of 2.3 × 103. Photolysis of this system (λir=230 nm) produces Hg22+ in the first stage with a quantum yield of 0.88. Prolonged irradiation results in the reduction of Hg22+ to metallic mercury.

Original languageEnglish
Pages (from-to)270-272
Number of pages3
JournalInorganic Chemistry Communications
Issue number7
Publication statusPublished - Jul 1998



  • Alkenes
  • Hydroxomercuration
  • Photolysis

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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