Recognition of linear dicarboxylate anions by the host with two naphthylurea groups |
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Authors: | Mei Minghua Wu Shikang |
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Institution: | Institute of Photographic Chemistry, Chinese Academy of Sciences, |
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Abstract: | The compound 1 with preorganized structure was synthesized, and its absorption and fluorescence spectra in the presence of dicarboxylate anion were studied. The results showed that the emission of compound 1 at 380 nm could be quenched via addition of dicarboxylate anion, and a structureless red-shift emission band at 500 nm appeared simultaneously. These phenomena could be caused by the formation of the complex of compound 1 and dicarboxylate anion.According to the results of fluorescence spectra and 1H-NMR, the binding constant of pimelate with compound 1 has the largest value, owing to the most suitable conformation of compound 1 for pimelate. |
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Keywords: | fluorescence spectrum anion recognition urea linear dicarboxylate |
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