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Updated: Jun 9, 2026

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Published on: August 19, 2013
Anion complexation and sensing using modified urea and thiourea-based receptors.
Ai-Fang Li1, Jin-He Wang, Fang Wang
1Department of Chemistry, College of Chemistry and Chemical Engineering, and the MOE Key Laboratory of Analytical Sciences, Xiamen University, Xiamen 361005, China.
This review covers new developments in modified thiourea receptors for anion sensing. These advanced receptors show improved binding affinity, selectivity, and practicality for detecting anions.
Area of Science:
- Supramolecular Chemistry
- Analytical Chemistry
Background:
- Anion recognition is crucial in various chemical and biological processes.
- Thiourea derivatives are widely explored as versatile receptors for anions.
Purpose of the Study:
- To critically review recent advancements in structurally modified (thio)urea-based receptors.
- To highlight improvements in anion complexation and sensing capabilities.
Main Methods:
- Review of literature on N-alkyl, N-aryl, and N-amido/N-amino (thio)urea receptors.
- Analysis of structural modifications influencing anion binding properties.
Main Results:
- Modified (thio)urea structures enhance anion binding constants and selectivity.
- Recent designs offer improved feasibility for practical anion sensing applications.
Conclusions:
- Structural modifications are key to optimizing (thio)urea receptors for anion complexation.
- Further design strategies can lead to more efficient and selective anion sensors.
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