Synthesis of novel chiral bis(ferrocenyl) ligands and their use as voltammetric metal cation sensors

O.B. Sutcliffe, M.R. Bryce, A.S. Batsanov

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Bis(ferrocenyl) derivatives 3a, 3c and 3d containing secondary chelating substituents act as efficient voltammetric sensors of Mg2+ and Zn2+ ions in acetonitrile solution in concentrations as low as 10 mol%: a new redox peak appears in the cyclic voltammogram, positively shifted by 170-225 mV for 3a, 160-175 mV for 3c and 160-170 mV for 3d. Compounds 3b and 4 are selective for Zn2+ (215 mV shift) and Mg2+ (205 mV shift) ions, respectively, whilst 3d is also responsive to Ca2+ ions (165 mV shift) with no interference from a large excess of several other metal salts. The X-ray crystal structure of 3a is also reported.
Original languageEnglish
Pages (from-to)211-216
Number of pages5
JournalJournal of Organometallic Chemistry
Issue number1-2
Publication statusPublished - Aug 2002



  • ferrocene
  • imidazoline
  • chiral ligands

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