Communication

AND/NOT Sensing of Fluoride and Cyanide Ions by Ferrocene-Derivatised Lewis Acids

  1. Alexander E. J. Broomsgrove1,
  2. David A. Addy1,
  3. Christopher Bresner2,
  4. Ian A. Fallis2,
  5. Amber L. Thompson1,
  6. Simon Aldridge1

Article first published online: 30 JUL 2008

DOI: 10.1002/chem.200801381

Issue

Chemistry - A European Journal

Chemistry - A European Journal

Volume 14, Issue 25, pages 7525–7529, August 28, 2008

Additional Information

How to Cite

Broomsgrove, A. E., Addy, D., Bresner, C., Fallis, I., Thompson, A. and Aldridge, S. (2008), AND/NOT Sensing of Fluoride and Cyanide Ions by Ferrocene-Derivatised Lewis Acids. Chemistry - A European Journal, 14: 7525–7529. doi: 10.1002/chem.200801381

Author Information

  1. 1

    Inorganic Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR (UK), Fax: (+44) 1865-272690

  2. 2

    Cardiff School of Chemistry, Main Building, Park Place, Cardiff, CF10 3AT (UK)

Publication History

  1. Issue published online: 25 AUG 2008
  2. Article first published online: 30 JUL 2008
  3. Manuscript Received: 8 JUL 2008

Funded by

  • EPSRC
  • JGS

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Keywords:

  • boron;
  • boryl compounds;
  • cyanides;
  • ferrocene;
  • fluorides;
  • Lewis acids;
  • sensors

Graphical Abstract

Thumbnail image of graphical abstract

A simple two-component sensor system was developed, featuring the strongly Lewis acidic (but air-stable) FcRBMes2 (1: FcR=(η5-C5H4)Fe(η5-C5R5), R=H, Me; Mes=2,4,6-Me3C6H2), which can be shown to bind both fluoride AND cyanide in solution (but not other anions), and the weaker boronic ester Lewis acid FcRB(OR)2 (2: (OR)2=R,R-OC(H)PhC(H)PhO), which signals the presence of fluoride but NOT cyanide in solution. By coupling the electrochemical shifts with a suitable redox-active tetrazolium dye, a colorimetric AND/NOT sensor system for fluoride and cyanide ions can be developed (see picture).

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