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Updated: May 18, 2026

Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
Published on: August 19, 2013
Benzobisoxazole fluorophore vicariously senses amines, ureas, anions
Jaebum Lim1, Ognjen Š Miljanić
1University of Houston, Department of Chemistry, 136 Fleming Building, Houston, TX 77204-5003, USA.
Abstract:
A benzobisoxazole-based cruciform fluorophore forms fluorescent complexes with simple boronic acids. Through the changes of their fluorescence emission colours, these complexes can sense and qualitatively distinguish among structurally similar organic nitrogen compounds (amines and ureas) and small organic and inorganic anions. Preliminary results suggest that the intensity of this hybrid sensor's fluorescent response to chloride anions can be quantitatively correlated to chloride concentration.
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