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Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
Published on: August 19, 2013
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Triarylborane substituted naphthalimide as a fluoride and cyanide ion sensor
T Sheshashena Reddy1, Ramesh Maragani, Rajneesh Misra
1Department of Chemistry, Indian Institute of Technology Indore, Indore-452017, India. rajneeshmisra@iiti.ac.in.
Dalton Transactions (Cambridge, England : 2003)
|January 5, 2016
Summary
A novel triarylborane naphthalimide selectively detects fluoride and cyanide ions with high sensitivity. This fluorescent sensor shows potential for environmental monitoring and chemical analysis.
Area of Science:
- Organic Chemistry
- Materials Science
- Analytical Chemistry
Background:
- Naphthalimide derivatives are widely used in fluorescent materials.
- Triarylborane compounds offer unique electronic properties.
- Developing selective anion sensors is crucial for environmental and biological applications.
Purpose of the Study:
- To design and synthesize a novel triarylborane substituted naphthalimide.
- To investigate its photophysical properties and anion sensing capabilities.
- To elucidate the sensing mechanism using computational methods.
Main Methods:
- Sonogashira cross-coupling reaction for synthesis.
- UV-Vis absorption and fluorescence spectroscopy for characterization.
- Density Functional Theory (DFT) calculations for mechanistic studies.
Main Results:
- The synthesized triarylborane naphthalimide exhibited red-shifted absorption and emission spectra.
- It demonstrated selective detection of fluoride (F-) and cyanide (CN-) ions.
- Experimental results were in good agreement with DFT calculations.
- Achieved low detection limits for F- (2.01 × 10⁻¹⁰ M) and CN- (3.94 × 10⁻¹⁰ M).
Conclusions:
- The triarylborane naphthalimide is a promising fluorescent sensor for F- and CN- ions.
- The study provides insights into the structure-property relationships for anion sensing.
- The developed sensor offers high sensitivity and selectivity for practical applications.
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