to induce conformational switching between the kite and vase forms of diquinone-diquinoxaline resorcin[4]arenecavitands upon redox interconversion. The H-bond acceptors were placed on the quinoxaline walls with the purpose of stabilizing the vase form only in the reduced hydroquinone state of the cavitand by forming H-bonds with the hydroquinone OH groups. Design guidelines for successful acceptors
评估了各种 H 键受体基团在氧化还原相互转化时诱导二醌-二喹喔啉间苯二酚 [4] 芳烃空腔体的风筝和花瓶形式之间构象转换的倾向。氢键受体被放置在喹喔啉壁上,目的是通过与氢醌 OH 基团形成氢键来稳定花瓶形式,仅在腔体的还原氢醌状态。成功接受器的设计指南被推导出来。甲酰胺受体被证明是最佳候选者。基于该部分,制备了一种氧化还原可切换的三苯乙烯基篮子,该篮子可以在其封闭的花瓶构象中完全空间封装客体。