科研之友
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摘要
A switchable [2]rotaxane based on a pyridinediamide crown ether macrocycle and a thread bearing phosphine oxide, urea, and dibenzylammonium functional groups was successfully developed and characterized by (HNMR)-H-1 and 2D NMR spectroscopy, mass spectrometry, and single-crystal analysis. The three recognition sites in the [2]rotaxane were sorted from strong to weak, according to their bonding abilities, so that the macrocycle could move along the thread from one side to the other in a directional way, operating as a multistable molecular shuttle.
- 出版日期2016-6-17
- 单位南京大学
