Issue 6, 1999
From the journal:

Journal of the Chemical Society, Perkin Transactions 2

Optical sensing of inorganic anions employing a synthetic receptor and ionic colorimetric dyes

Kenichi Niikura,   Adrian P. Bisson  and  Eric V. Anslyn  

Abstract

A novel optical sensing methodology for nitrate ions has been developed using an ensemble of a synthetic receptor and colorimetric dyes as indicators. Neutral receptor 1 forms one to one complexes with anionic dyes such as Resorufin or Methyl Red in organic solvents. The equilibrium between receptor and dye is perturbed by added nitrate ion, resulting in a receptor–nitrate complex. The displacement of the indicator by nitrate causes large absorbance changes, because of alternation of the microenvironment of the chromophore. The association constants between receptor 1 and various anions were determined by analyzing the intensity changes.

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Article information

DOI
https://doi.org/10.1039/A901180C
Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1999, 1111-1114

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Optical sensing of inorganic anions employing a synthetic receptor and ionic colorimetric dyes

K. Niikura, A. P. Bisson and E. V. Anslyn, J. Chem. Soc., Perkin Trans. 2, 1999, 1111 DOI: 10.1039/A901180C

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