Novel Fluorescent Chemosensor for Detection of F- Anions Based on a Single Functionalized Pillar[5]arene Iron(III) Complex

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 2.50x10(-7) mol/L. Moreover, the sensor PN-Fe3+ might serve as a recyclable component in sensing materials.