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A pyrenyl-appended C3v-symmetric hexahomotrioxacalix[3]arene for selective fluorescence sensing of iodide
Ist Teil von
Dyes and pigments, 2020-07, Vol.178, Article 108340
Ort / Verlag
Elsevier Ltd
Erscheinungsjahr
2020
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals Complete
Beschreibungen/Notizen
A new C3v-symmetric hexahomotrioxacalix[3]arene L bearing pyrene moieties as fluorophores has been designed and synthesized. L exhibits a significant fluorescence quenching response to I− even when in the presence of other potentially competing anions. There is a good linear relationship between the fluorescence intensity and the concentration of I− over the range 0–100 μM and the detection limit was calculated to be as low as 164 nM. Ligand L can serve as a fluorescent chemosensor for the highly selective, sensitive, and rapid detection of I−.
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•A pyrenyl-appended C3v-symmetric homooxacalix[3]arene was designed and synthesized.•The proposal chemosensor L exhibited high selectivity and sensitivity towards I− over other anions tested.•A fluorescence turn-off chemosensor for rapid detection of I− was established.