sensitization of the C3 and ZnP unit, respectively. The light energy transferred from NIE to Zn porphyrin unit is ultimately funneled to the corrole component, which is the final recipient of the excitation energy absorbed by the different components of the array. The latter process occurs with a rate ken=3.4×109 s−1 and 89 % efficiency. Energy transfer processes take place in all cases by a Förster
已合成了由三个单元组成的组装体,分别是内消旋取代的甲氧基(C3),1,8
萘二甲
酰亚胺(NIE)和
锌卟啉(ZnP)。NIE通过
1,3-亚苯基桥和所述ZNP单元通过直接Ç连接到C3 C键。趋同的合成策略包括制备具有
酰亚胺单元的反式A 2 B甲氧基,然后将Sonogashira与内消旋的A 3 B
卟啉偶联。检查所得三元组ZnP-NIE-C3的光物理过程并将其与相应C3-NIE的光物理过程进行比较dyad和组成参考模型C3,NIE和ZnP。在C3-NIE中激发NIE单元会导致以98%的效率将能量快速转移到C3上,速率k en = 7.5×10 10 s -1,而对Corrole单元的激发则导致相同激发态的反应相对于模型C3的失活率,到基态的失活率k= 2.5×10 8 s -1。在三重态ZnP-NIE-C3中激发NIE后,能量转移到C3和ZnP部分。比率是k en = 7.5×10对于C3和ZnP单元的敏化,分别为10