Multiple BODIPY derivatives with 1,3,5-triazine as core: balance between fluorescence and numbers of BODIPY units |
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Authors: | Wenchao Zhou Hongyu Guo Jianrong Lin Fafu Yang |
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Institution: | 1.College of Chemistry and Materials,Fujian Normal University,Fuzhou,People’s Republic of China;2.Fujian Key Laboratory of Polymer Materials,Fuzhou,People’s Republic of China |
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Abstract: | The multiple BODIPY derivatives could exhibit higher fluorescence than mono-BODIPY derivatives but also might produce the stronger aggregation-induced quenching effect. It is important to investigate the relationship between fluorescence and numbers of BODIPY units. In this work, series of multiple BODIPY derivatives 2–5 with 1,3,5-triazine as core were designed and synthesized in high yields. A subtle balance between the fluorescence enhancement of multiple BODIPY units and fluorescence quenching based on H-aggregation of multiple BODIPY units was observed for these multiple BODIPY derivatives. Compound 3 bearing two BODIPY units with triazine as core presented the strongest fluorescence emission and highest fluorescence quantum yield. Compound 3 was successfully applied in viscosity measurement, exhibiting the linear relationship between fluorescence intensity (or steady-state emission anisotropy) and viscosity. |
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