期刊
ORGANIC CHEMISTRY FRONTIERS
卷 8, 期 16, 页码 4399-4407出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1qo00643f
关键词
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资金
- Volkswagen-Stiftung [Az. 93438]
- 111 project [90002-18011002]
The study reports the incorporation of a linear D-pi-A push-pull chromophore synthesized by a Knoevenagel condensation as axle of a rotaxane, with mechanical fixation of the superstructure achieved by click chemistry in aqueous solution. The isolated rotaxane with a red-to-NIR emitting dye as axle demonstrates enhanced emission in aqueous buffered media compared to the unthreaded model chromophore.
The incorporation of a linear D-pi-A push-pull chromophore synthesized by a Knoevenagel condensation as axle of a rotaxane is reported. While the introduction of the mechanical stoppers by the reversible and thermodynamically controlled Knoevenagel reaction turned out to be challenging, mechanical fixation of the superstructure is achieved by click chemistry in aqueous solution. The isolated rotaxane with a red- to NIR-emitting dye as axle displays enhanced emission in aqueous buffered media compared to the unthreaded model chromophore.
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