Colorimetric anion chemosensor based on 2-aminobenzimidazole: naked-eye detection of biologically important anions |
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Authors: | Kyung Soo Moon Gang Woo Lee |
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Affiliation: | a Department of Chemistry, Yonsei University, Wonju 220-710, Republic of Korea b Center for Bioactive Molecular Hybrids, Yonsei University, Seoul 120-749, Republic of Korea |
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Abstract: | We synthesized a novel colorimetric anion chemosensor bearing benzimidazole motifs as recognition sites in the pods of the receptor. The addition of tetrabutylammonium salts of F− or AcO− to the solution of receptor caused dramatic color changes from colorless to yellow, which was clearly visible to the naked eye. The receptor showed no significant changes on addition of other anions such as Cl−, Br−, I−, NO3−, and H2PO4−. |
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Keywords: | Colorimetic chemosensor Benzimidazole Anion binding |
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