Mechanochemical Encapsulation of Fullerenes in Peptidic Containers Prepared by Dynamic Chiral Self-Sorting and Self-Assembly
作者:Marek Szymański、Michał Wierzbicki、Mirosław Gilski、Hanna Jędrzejewska、Marcin Sztylko、Piotr Cmoch、Aleksander Shkurenko、Mariusz Jaskólski、Agnieszka Szumna
DOI:10.1002/chem.201504451
日期:2016.2.24
homochiral capsules from mixtures of different substrates. The capsules have cavities of around 800 Å3 and exhibit good kinetic stability. Although they retain their dynamic character, which allows processes such as chiral self‐sorting and chiral self‐assembly to operate with high fidelity, guest complexation is hindered in solution. However, the quantitative complexation of even very large guests, such
使用动态共价化学(DCC)和基于氢键的自组装方法,合成了由氨基酸或肽衍生物通过酰基hydr连接体连接间苯二酚[4]芳烃骨架的分子胶囊。接头的动态特性以及肽类倾向于自组装成β桶型基序,导致自不同底物混合物形成同手性胶囊的自发扩增。该胶囊具有约800空腔中3并表现出良好的动力学稳定性。尽管它们保留了其动态特性,这使诸如手性自分选和手性自组装等过程能够以高保真度进行操作,但在溶液中阻碍了客体的络合。但是,即使是非常大的客体,例如富勒烯C 60或C 70,也可以通过利用可逆的共价键或机械化学方法进行定量配位。NMR谱显示手性环境对富勒烯分子对称性的影响,这导致C 70的非对映碳原子分化,并且X射线结构提供了有关肽-富勒烯相互作用模式的独特信息。