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Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores

Article DOI: 10.3791/50858-v • 09:46 min • August 19th, 2013
August 19th, 2013 •
1, 2, 1, 2, 1, 2
1Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, 2Department of Chemistry, University of Houston

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Summary
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Cross-conjugated cruciform fluorophores based on 1,4-distyryl-2,5-bis(arylethynyl)benzene and benzobisoxazole nuclei can be used to qualitatively identify diverse Lewis acidic and Lewis basic analytes. This method relies on the differences in emission colors of the cruciforms that are observed upon analyte addition. Structurally closely related species can be distinguished from each other.

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Qualitative Identification Carboxylic Acids Boronic Acids Amines Cruciform Fluorophores Molecular Cruciforms Electron-donors Electron-acceptors HOMO-LUMO Gap Optical Properties Fluorescent Sensors Metal Ions Phenols Anions Emission Colors Charge-separated Excited States Solvent Analyte Classes Hybrid Sensing System
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