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《中国化学：英文版》
>Study on the Anion Recognition Properties of Synthesized Receptors (Ⅲ): Convenient Synthesis and Anion Recognition Property of Bisthiosemicarbazone Derivative
Study on the Anion Recognition Properties of Synthesized Receptors (Ⅲ): Convenient Synthesis and Anion Recognition Property of Bisthiosemicarbazone Derivative
A new series of bisthiosemicarbazone derivative receptors (1, 2 and 3) have been synthesized by simple steps in good yields. Their anion recognition properties were studied by UV-Vis and 1H NMR spectroscopy. The result showed that the receptors 1, 2 and 3 all had a better selectivity to F-, CH3COO- and H2PO4-, but no evident binding with Cl-, Br-, I-, NO3- and HSO4. Upon addition of the three anions to the receptors in DMSO, the solution acquired a color change from colorless to dark yellow that can be observed by the naked-eyes, thus the receptors can act as fluoride ion sensors even in the presence of other halide ions. The data showed that it was regular that the three receptors had different binding ability with the three anions. For the same anion, the association conformed through hydrogen bonding interactions between compound 1, 2 or 3 and anions.
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