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RESEARCH ARTICLE

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A Colorimetric Ditopic Receptor Modulated by Fluoride Anion and Sodium Cation Binding

Yao-Pin Yen ^A ^B , Chia-Lan Chen ^A , Tung-Ming Fu ^A , Chen-Yu Wu ^A and Chi-Yung Lin ^A

+ Author Affiliations

- Author Affiliations

^A Department of Applied Chemistry, Providence University, Taiwan ROC.

^B Corresponding author. Email: ypyen@pu.edu.tw

Australian Journal of Chemistry 59(11) 805-811 https://doi.org/10.1071/CH06265
Submitted: 27 July 2006 Accepted: 9 October 2006 Published: 17 November 2006

Abstract

A new colorimetric ditopic receptor (1) was synthesized and characterized. Upon investigation of a series of anions, the appearance of the solution of receptor 1 with F^– showed a colour change from light-yellowish to orange-red which can be detected by the naked eye. Upon subsequent addition of Na⁺ or Li⁺ to the solution, the orange-red colour was no longer observable. The remarkable colour switching (ON and OFF) is thus controlled by the anion and cation recognition.

Acknowledgments

We thank the National Science Council of the Republic of China for financial support (NSC 92-2113-M-126-002) and the National Center for High-Performance Computation.

References

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