Fluorescent Sensors for Carboxylic Acids
Author Information
Author(s): Ghosh Kumaresh, Adhikari Suman, Chattopadhyay Asoke P, Chowdhury Purnendu Roy
Primary Institution: Department of Chemistry, University of Kalyani
Hypothesis
Can quinoline-based receptors effectively discriminate between different carboxylic acids using fluorescence?
Conclusion
The quinoline-based receptor can selectively bind and distinguish hydroxy dicarboxylic acids from non-hydroxy analogues through excimer emission.
Supporting Evidence
- The receptor 1 shows strong excimer emission when binding with citric acid.
- The receptor 2 exhibited less binding affinity compared to receptor 1.
- Excimer formation is dependent on the nature of the carboxylic acids.
Takeaway
The study shows that a special chemical sensor can tell different types of acids apart by changing colors when they mix together.
Methodology
The receptors were synthesized and their binding properties were evaluated using UV-vis and fluorescence spectroscopy in chloroform.
Limitations
The study primarily focuses on the performance of the receptors in chloroform, which may not represent behavior in other solvents.
Digital Object Identifier (DOI)
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