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Stimuli‐Responsive Fluorescence Switching
In article number 2301228, Bing Yang, Haichao Liu, and co‐workers, report a noncovalent fluorescence switching achieved by utilizing the competition of H‐bond and π–π interaction. The obvious transition between blue monomer emission and yellow dimer emission can be induced by laser radiation and used for rewritable optical recording and time‐dependent anti‐counterfeiting...
Noncovalent fluorescence switching materials with specific molecular packing motifs for desired performance are difficult to design accurately due to the complexity of intermolecular interactions. Herein, a noncovalent interaction competition strategy to design fluorescence‐switching materials by fine‐modulating hydrogen‐bond and π–π interactions is proposed. Hydrogen bonds are generated by nitrogen/oxygen‐containing...
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