Studies on the Anion Recognition Properties of Synthesized Receptors III: A Novel Thiourea-Based Receptor Constructed by Benzo-15-Crown-5 for Sensing Anions in a Strong Polar Solvent

Authors : YouMing ZHANG, HaiXian REN, YanQing ZHOU, Rong LUO

Pages : 327-334

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A new series of receptors were designed and synthesized, and their interactions with anions, such as F-, Cl-, Br-, I-, CH3COO-, HSO4-, and NO3-, in DMSO solvent were investigated using UV-Vis absorption spectroscopy. The results showed that hydrogen-bonding complexes were formed between the receptors and the tested anions, such as CH3COO- and F-. It was also found that the selectivity of the receptors for anions could be efficiently tuned by changing the place of the substituent group at the N-phenyl moiety. The recognition mechanism and binding mode are discussed. These findings were expected to be of significance for designing and developing a novel, highly selective receptor for the acetate anion in a strong polar solvent.
Keywords : Anion recognition, thiosemicarbazone, binding constant