Rational design of a colorimetric and ratiometric fluorescent chemosensor based on intramolecular charge transfer (ICT) |
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Authors: | Shao Jie Lin Hai Lin Huakuan |
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Affiliation: | a Department of Chemistry, Nankai University, Tianjin 300071, PR China b Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, Tianjin 300071, PR China |
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Abstract: | A simple colorimetric and ratiometric fluorescent anion sensor 1, 3,6-dichloro-1,8-dinitrocarbazole, was rationally designed and synthesized on basis of the mechanism of intramolecular charge transfer (ICT). In DMSO solutions of 1, the presence of AcO−, F− and H2PO4− gave birth to the formation of a 2:1 host-to-guest complex, which was synchronously accompanied by a ‘naked-eye’ color change from light yellow to purple, a red-shift of the absorption spectrum and a blue-shift of the emission spectrum. |
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Keywords: | Colorimetric Ratiometric Fluorescence ICT Anion sensor |
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