Hydrogen-Bonded Aryl Amide Macrocycles: Synthesis, Single-Crystal Structures, and Stacking Interactions with Fullerenes and Coronene
作者:Yuan-Yuan Zhu、Chuang Li、Guang-Yu Li、Xi-Kui Jiang、Zhan-Ting Li
DOI:10.1021/jo702046f
日期:2008.3.1
stacking structures were observed. The 1H (DOSY) NMR, UV−vis, and fluorescent experiments indicated that the new rigidified macrocycles complex fullerenes or coronene in chloroform through intermolecular π-stacking interaction. The association constants of the corresponding 1:1 complexes have been determined if the stacking was able to cause important fluorescent quenching of the macrocycles or coronene
通过使用一步法和(对于某些方法)逐步制备了六个氢键结合的形状持久性芳基酰胺大环化合物。从一步反应,以适中至良好的产率获得了3 + 3、2 + 2或什至1 + 1大环。反应选择性高度取决于前体的结构。两个带有甲氧基的大环的X射线结构分析显示分子内氢键和弱的分子间堆积相互作用。没有观察到柱式堆叠结构。在1H(DOSY)NMR,UV-vis和荧光实验表明,新的刚性大环化合物通过分子间π堆积相互作用在氯仿中络合富勒烯或并苯。如果堆积能够引起大环化合物或并苯的重要荧光猝灭,则已经确定了相应的1:1配合物的缔合常数。