期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 22, 期 20, 页码 6837-6845出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201600453
关键词
daisy chain; molecular devices; biomimetic synthesis; rotaxanes; template synthesis
资金
- LABEX ChemiSyst [ANR-10-LABX-05-01]
The synthesis of a novel pH-sensitive hetero[4]rotaxane molecular machine through a self-sorting strategy is reported. The original tetra-interlocked molecular architecture combines a [c2]daisy chain scaffold linked to two [2]rotaxane units. Actuation of the system through pH variation is possible thanks to the specific interactions of the dibenzo-24-crown-8 (DB24C8) macrocycles for ammonium, anilinium, and triazolium molecular stations. Selective deprotonation of the anilinium moieties triggers shuttling of the unsubstituted DB24C8 along the [2]rotaxane units.
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