Two [2]rotaxanes, composed of (i) a polyether chain intercepted by (a) one centrally-located and (b) two symmetrically-located π-electron-rich hydroquinol rings and terminated by free-base and metallated (Zn) tetraaryl-porphyrin groups respectively and (ii) a tetracationic cyclophane constructed of two π-electron-deficient bipyridinium units linked by paraphenylenedimethyl residues, have been self-assembled by a clipping procedure.
两种[2]旋转烷,由以下部分组成:(i) 一个聚醚链,中间位置有一个和两个对称位置的富 π 电子的
氢醌环,末端分别为游离碱和
金属化(
锌)四芳基
卟啉基团;(ii) 一个四阳离子环烷,由两个富 π 电子缺陷的二
吡啶单元通过对苯二甲基残基连接而成。通过夹持过程自组装而成。