Synthesis,Photochromism, and Effects of Metal Ions on Fluorescence of Dithienylethenes Containing Imidazo[2,1-a]isoquinoline |
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Authors: | Sisi Li Ziyong Li Shuyuan Huang |
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Affiliation: | Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Wuhan , P. R. China |
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Abstract: | Dithienylethene derivatives containing imidazo[2,1-a]isoquinolines were directly synthesized by treatment of the diketone with 2-ethynylbenzaldehyde in one pot. Their photochromism indicated that they can easily isomerize between the ring-open and ring-closed isomers upon irradiation with ultraviolet or visible light in CH2Cl2. At the same time, they display high selectivity toward Fe3+ by the fluorescence titration, such that the addition of Fe3+ can obviously suppress their fluorescence intensity. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications® to view the free supplemental file. |
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Keywords: | Dithienylethene effects of metal ions imidazo[2,1-a]isoquinoline photochromism |
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