科研之友
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摘要
Three novel and simple N,N '-diacylhydrazine-based colorimetric receptors have been prepared. The binding properties of the receptors to anions such as F-, Cl-, Br-, AcO-, HSO4- and H2PO4- in acetonitrile solution were examined by UV-Vis spectroscopy methods, which show high sensitivity and selectivity to F(-)and AcO- over other anions. The results indicated that a 1 : 1 stoichiometry complex was formed between the receptors and the anions, while H-1 NMR titrations confirmed hydrogen binding interaction between the receptors and the anions.
