Although the preparation of artificial light-harvesting systems (ALHs) has attracted increasing attention, dynamic regulation of antenna effect in ALHs has been still a major challenge. Herein, we constructed a family of new rotaxane dendrimers containing up to fifty-six anthracene moieties (energy donor) on the wheels of the rotaxane units and one zinc(II) porphyrin moiety (energy acceptor) at the central core. Notably, the resultant rotaxane dendrimers incorporate a large number of rotaxane subunits on the dendritic skeleton in a monodisperse manner, which thus allowed for the high energy transfer efficiencies and antenna effects. More importantly, with the addition and removal of acetate anions, the directional and reversible motion of rotaxane unit on each axis was realized, thus leading to dynamic regulation of antenna effect in resultant rotaxane dendrimers.

尽管人工光收集系统（ALHs）的制备已引起越来越多的关注，但是ALHs中天线效应的动态调节仍然是主要的挑战。在此，我们构建了一个新的轮烷类树枝状聚合物家族，其轮状烷单元的轮子上最多包含五十六个蒽部分（能量供体），中心核心包含一个锌（II）卟啉部分（能量受体）。值得注意的是，所得轮烷烷树枝状聚合物以单分散方式在树枝状骨架上结合了大量轮烷亚基，因此允许高能量转移效率和天线效应。更重要的是，通过添加和去除乙酸根阴离子，轮烷单元在每个轴上的定向和可逆运动得以实现，