Abstract: Summary A meso -aryl calix[4]pyrrole derivative bearing benzimidazolium groups at the two diametrical meso positions was synthesized. The receptor acts as an effective host for the bicarbonate anion at concentrations as low as 4 nM. A change in fluorescence response was observed under conditions of fluorescence dye displacement when this functionalized calix[4]pyrrole was exposed to the HCO 3 – anion. Tests with various carbonated drinks revealed its ability to function as an easy-to-use sensor for dissolved CO 2 , as monitored through the bi...
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Topics: 
Photochemistry
Medicinal chemistry
Inorganic chemistry