期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 77, 期 5, 页码 2422-2430出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo3000755
关键词
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资金
- National Natural Science Foundation of China [91127009, 20972162]
- National Basic Research Program [2011CB932501]
A new triptycene-derived macrotricyclic host containing two dibenzo-[18]-crown-6 moieties was synthesized and shown to form 1:1 complexes with paraquat derivatives in solution, in which the guests all thread the central cavity of the host. However, it was interestingly found that, depending on the paraquat derivatives with different functional groups, the host can form stable 1:1 or 1:2 complexes in different complexation modes in the solid state, which is significantly different from those of the macrotricyclic host containing two dibenzo-[24]-crown-8 moieties. The formation of the complexes was also proved by the ESI MS and electrochemical experiments. Moreover, it was found that the binding and release of the guests in the complexes could be easily controlled by the addition and removal of lithium ions.
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