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Fluoride ion-triggered dual fluorescence switch based on naphthalimides winged zinc porphyrin
Authors:Li Yang  Cao Lifeng  Tian He
Affiliation:Labs for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
Abstract:A novel fluoride ion-triggered dual fluorescence molecular switch based on naphthalimides winged zinc porphyrin (1) was designed and prepared. The fluorescence of the zinc porphyrin unit could be regulated "ON-OFF" on the excitation of 365 nm and "OFF-ON" on the excitation of 504 nm, respectively, in the presence of fluoride ion. The obvious color changes induced by the intermolecular proton transfer on N-H fragments are clearly visible to the naked eye.
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