We report novel pseudorotaxanes based on the complexation between pillar[4]arene[1]quinone and 1,10-dibromodecane. The complexation is found to have a 1:1 host–guest complexation stoichiometry in chloroform but a 2:1 host–guest complexation stoichiometry in the solid state. From single crystal X-ray diffraction, the linear guest molecules thread into cyclic pillar[4]arene[1]quinone host molecules in the solid state, stabilized by CH∙∙∙π interactions and hydrogen bonds. The bromine atoms at the periphery of the guest molecule provide convenience for the further capping of the pseudorotaxanes to construct rotaxanes.

中文翻译：

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溶液和固态中柱[4]芳烃[1]醌–1,10-二溴现代烷假轮烷的构造

我们报告新型假轮烷基于支柱[4]芳烃[1]醌和1,10-二溴代甘蔗之间的络合。发现该络合物在氯仿中具有1：1主体-客体络合化学计量比，但在固态时具有2：1主体-客体络合化学计量比。通过单晶X射线衍射，线性客体分子穿入固态的环状支柱[4]芳烃[1]醌主体分子中，并通过CH∙∙∙π相互作用和氢键稳定。客体分子外围的溴原子为进一步封盖拟轮烷提供了便利，以构建轮烷。