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Indexed by:Journal Papers
First Author:Gong, Wei-tao
Correspondence Author:Gong, WT (reprint author), Dalian Univ Technol, Sch Chem Engn, Dalian, Peoples R China.
Co-author:Qu, Wei-dong,Ning, Guiling
Date of Publication:2020-01-01
Journal:LETTERS IN ORGANIC CHEMISTRY
Included Journals:SCIE
Volume:17
Issue:6
Page Number:472-478
ISSN No.:1570-1786
Key Words:Pyridinium amide-based receptors; naked-eye selective; acetate ion; pyridinium; naked-eye; hydrogen bonding
Abstract:Two pyridinium amide-based receptors L1 and L2 with a small difference of H-bond position of the amide have been synthesized and characterized. Interestingly, they exhibited a huge difference in sensing towards AcO- and H2PO4-, respectively. Receptor L1 was found to be 'naked-eye' selective for AcO- anions, while receptor L2 showed clear fluorescence enhancement selective to H2PO4- anion. The recognition ability has been established by fluorescence emission, UV-vis spectra, and (HNMR)-H-1 titration.
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