Nakamura Yasuyuki, Aratani Naoki, Osuka Atsuhiro
Department of Chemistry, Graduate School of Science, Kyoto University, and Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency, Kyoto 606-8502, Japan.
Chem Soc Rev. 2007 Jun;36(6):831-45. doi: 10.1039/b618854k. Epub 2007 Mar 29.
Covalently linked cyclic porphyrin arrays have been explored in recent years as artificial photosynthetic antenna. In this review we present the fundamental aspects of covalently linked cyclic porphyrin arrays by highlighting recent progress. The major emphasis of this tutorial review lies on the synthetic method, the structure, and the excitation energy transfer (EET) of such arrays. The final cyclization steps were often performed with the aid of templates. Efficient EET along the wheel is observed in these cyclic arrays, but ultrafast EET processes with rates of <1 ps, which rival those in the natural LH2, are rare and have been identified only in cyclic arrays 30-32 composed of directly meso-meso linked porphyrins.
近年来，共价连接的环状卟啉阵列作为人工光合天线受到了研究。在本综述中，我们通过强调近期进展来介绍共价连接的环状卟啉阵列的基本方面。本教程综述的主要重点在于此类阵列的合成方法、结构和激发能量转移（EET）。最后的环化步骤通常借助模板进行。在这些环状阵列中观察到沿着轮状结构的高效EET，但速率小于1皮秒的超快EET过程很少见，仅在由直接中-中连接的卟啉组成的环状阵列30 - 32中被发现，其速率可与天然LH2中的相媲美。
