Triggering a [2]Rotaxane Molecular Shuttle by a Photochemical Bond-Cleavage Strategy
Triggering a [2]Rotaxane Molecular Shuttle by a Photochemical Bond-Cleavage Strategy
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DOI：
10.1021/acs.orglett.7b00393
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发表时间：
2017-04-07
期刊：
影响因子：
5.2
通讯作者：
Tian, He
中科院分区：
文献类型：
--
作者：
Gao, Chuan;Luan, Zhou-Lin;Tian, He
采用光化学键解理策略成功地触发了[2]轮烷中两个工位之间的环穿梭运动。在两个相同的线程中共价地引入可光性体屏障，以防止大周期的动态穿梭，从而产生“门控”状态。紫外光（λ = 365 nm）的照射导致体屏障完全去除和大环的平衡来回运动，表明轮烷处于“开放”状态。此外，通过化学重键法实现了从“开放”轮烷到“门控”轮烷的过程。
The successful triggering of ring-shuttling motion between two stations in a [2]rotaxane is demonstrated by employing a photochemical bond-cleavage strategy. A photolabile bulk barrier is covalently introduced into two identical stations of the thread to prevent dynamic shuttling of the Macrocycle, resulting in a "gated" state. Irradiation of UV light (lambda = 365 nm) results in the complete removal of the bulk barrier and the balanced shuttling motion of the macrocycle, indicating an "open" state of the rotaxane. In addition, the process from the "open" rotaxane to the "gated" rotaxane was executed by a chemical-rebonding method.