Selective fluorescence sensing of salicylic acids using a simple pyrenesulfonamide receptor?
RSC Advances Pub Date: 2015-02-25 DOI: 10.1039/C5RA00565E
Abstract
Pyrenesulfonamide and pyreneamide probes (2–5) were synthesized, and they were used in the sensing of salicylic acid derivatives. The ability of 3 to sense various salicylic acid derivatives was examined by UV-visible, fluorescence, and NMR spectroscopy; it was further supported by DFT calculations. The sensing of salicylic acid derivatives resulted in a significant quenching of the pyrene monomer emission. Among the tested salicylic acid derivatives, probe 3 exhibited the highest binding constant with 3,5-dinitrosalicylic acid (Ka = 2.65 × 105 M?1, measured at a 1?:?1 molar ratio in EtOH).
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Journal Name：RSC Advances
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CAS no.: 89640-58-4
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