Novel fluorescent chemosensor with good selectivity for F− anion was designed and synthesized. The sensor has a bearing on a single functionalized pillar[5]arene and Fe3+ metal complex (PN‐Fe), which showed prominent fluorescent response for F− anion over other common anions (Cl−, Br−, I−, AcO−, HSO4−, H2PO4−, ClO4−, CN− and SCN−). These results were evaluated by fluorescent method. The detection limit of PN‐Fe to F− was calculated to be 2.50×10−7 mol/L. Moreover, the sensor PN‐Fe3+ might serve as a recyclable component in sensing materials.
A bifunctional supramolecular pseudorotaxane chemosensor (G-WAP) based on pillar[5]arene and phenazine imidazole was constructed, which could detect Hg2+ and Ag+ in water.
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