Ye Yang, Wang Shu-Ping, Zhu Bin, Cook Timothy R, Wu Jing, Li Shijun, Stang Peter J
†College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China.
§Department of Chemistry, University at Buffalo, The State University of New York, 856 Natural Sciences Complex, Buffalo, New York 14260, United States.
Org Lett. 2015 Jun 5;17(11):2804-7. doi: 10.1021/acs.orglett.5b01211. Epub 2015 May 21.
Hierarchical self-assembly centered on metallacyclic scaffolds greatly facilitates the construction of mechanically interlocked structures. The formation of two [3]catenanes and one [4]molecular necklace is presented by utilizing the orthogonality of coordination-driven self-assembly and crown ether-based cryptand/paraquat derivative complexation. The threaded [3]catenanes and [4]molecular necklace were fabricated by using ten and nine total molecular components, respectively, from four and three unique species in solution, respectively. In all cases single supramolecular ensembles were obtained, attesting to the high degree of structural complexity made possible via self-assembly approaches.
以金属环支架为中心的分级自组装极大地促进了机械互锁结构的构建。通过利用配位驱动的自组装与基于冠醚的穴醚/百草枯衍生物络合的正交性，展示了两种[3]连环烷和一种[4]分子项链的形成。穿线的[3]连环烷和[4]分子项链分别由溶液中四种和三种独特物种的总共十个和九个分子组件制成。在所有情况下均获得了单一的超分子聚集体，证明了通过自组装方法实现的高度结构复杂性。
