An unprecedented molecular pumping cassette was designed and implemented for the construction of molecular necklaces, that is, radial [n]catenanes. The mechanism was fully confirmed on a model [2]pseudorotaxane, and the novel clipping-followed-by-pumping strategy was used to prepare a series of [n]catenanes (n = 2–5). A pair of [3]catenane diastereomers sequentially threaded with two different wheels
设计并实施了一种前所未有的分子泵送盒,用于构建分子链,即径向 [ n ] 链烷。该机制在模型[2]伪轮烷上得到充分证实,并采用新颖的剪切后泵送策略制备了一系列[ n ]链烷(n = 2-5)。一对[3]链烷非对映异构体依次与两个不同的轮子螺纹连接也得到了完成。利用分子泵浦构建分子项链的成功为复杂分子结构提供了新的见解,并扩大了分子机器在合成中的应用。
INTERLOCKED MOLECULES AND RELATED COMPONENTS, COMPOSITIONS, MATERIALS, METHODS AND SYSTEMS
申请人:CLARK Paul G.
公开号:US20110065935A1
公开(公告)日:2011-03-17
[c2] daisy chain macromers, dimers and polymers and related compositions, materials, methods and systems are described.
本文描述了雏菊链大分子、二聚体和聚合物以及相关的组合物、材料、方法和系统。
Optical Distinction between “Slow” and “Fast” Translational Motion in Degenerate Molecular Shuttles
作者:V. Nicholas Vukotic、Kelong Zhu、Giorgio Baggi、Stephen J. Loeb
DOI:10.1002/anie.201612549
日期:2017.5.22
the axle and wheel. The [2]rotaxane with a B24C6 wheel shows a difference in fluorescence between the charged and neutral species, while the [2]rotaxane with a DMB24C6 wheel exhibits a difference in color between the charged and neutral compounds. These changes in optical properties can be attributed to the structural differences in the co-conformations of the [2]rotaxane as they adapt to the changes