reactivity as that of the monomer. On the basis of this strategy, we have prepared cyclic porphyrin arrays including directly meso–meso linked porphyrin rings CZ4–CZ8, large porphyrin wheels C12ZA and C24ZB, and three-dimensional porphyrin boxes D1–D3. Efficient excitation energy transfer along these cyclic porphyrin arrays has been revealed by the time-resolved transient absorption and fluorescence measurements
我们已经探索了各种共价和非共价组装的环状
卟啉阵列,这些阵列主要作为光合系统中光收集天线的仿生模型。关键反应是Ag(I)促进的5,15-二芳基
锌(II)
卟啉的偶联反应,该反应提供了介观连接的二
卟啉。该偶联反应的优点是其极其容易地延伸至较高的
卟啉阵列,因为较长的
卟啉阵列实际上具有与单体相同的反应性。在此策略的基础上,我们准备了环状
卟啉阵列,包括直接介观的中观连接的
卟啉环
CZ4 –
CZ8,大的
卟啉轮C12ZA和C24ZB和三维
卟啉盒D1 - D3。通过时间分辨的瞬态吸收和荧光测量揭示了沿着这些环状
卟啉阵列的有效激发能转移。