Journal
CHEMISTRY LETTERS
Volume 35, Issue 1, Pages 116-117Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.2006.116
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Commercially available 4-(N.N-dirnethylamino)benzoic acid (1) was directly applied for anion recognition in CH3CN. It showed remarkable affinity and selectivity to divalent anions HPO42- and SO42- over monovalent anions Such as H2PO4-, HSO4-, ClO4-, BF4-, PF6-, and NO3- in terms of UV-vis and fluorescence durations. The combination of the basicity and charge density Of guest anions played an important role in the selectivity of host 1 toward anions.
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