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摘要
A highly selective colorimetric chemosensor 6,6'-((1E,1'E)-hydrazine-1,2-diylidenebis(methanylylidene))bis(2,4-dichlorophenol) (1) based on the combination of hydrazine and 3,5-dichloro-2-hydroxybenzaldehyde was designed and synthesized. Receptor 1 showed exclusive response toward cyanide by a color change from colorless to yellow in aqueous solution. The binding mode of 1-CN- species was determined to be a 1:1 stoichiometry through Job plot, H-1 NMR titration, and ESI-mass spectrometry analysis. Also, the sensor 1 could be recyclable simply through treatment with a proper reagent such as hydrochloric acid.
- 出版日期2015-4
