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A novel type of selective and sensitive fluorescent sensor having triazole rings as the binding sites on the lower rim of a hexahomotrioxacalix[3]arene scaffold in a cone conformation is reported. This sensor has desirable properties for practical applications, including selectivity for detecting Zn2+ and Cd2+ in the presence of excess competing metal ions at low ion concentration or as a fluorescence...
A new thiacalix[4]arene based fluorescent chemosensor L bearing two pyrenyl groups in a 1,3-alternate conformation has been synthesized, and its metal ion-binding and fluorescence-sensing properties were investigated in ethanol. The designed chemosensor L exhibited high selectivity toward Cu2+ ions versus other tested metal ions with a detection limit of up to 1.44×10−7 M. The chemosensor L was capable...
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