Lim Jong Min, Yoon Zin Seok, Shin Jae-Yoon, Kim Kil Suk, Yoon Min-Chul, Kim Dongho
Department of Chemistry, Yonsei University, Seodaemoon gu, Shinchon dong 134, Seoul, 120-749, Korea.
Chem Commun (Camb). 2009 Jan 21(3):261-73. doi: 10.1039/b810718a. Epub 2008 Oct 24.
Porphyrins, which consist of four pyrrolic subunits, are a ubiquitous class of naturally occurring compound with versatile photophysical properties. As an extension of the basic structure of the porphyrin macrocycle, there have been a multitude of approaches to synthesize expanded porphyrins with more than four pyrrole rings, leading to the modification of the macrocyclic ring size, planarity, number of pi-electrons and aromaticity. However, the relationship between the photophysical properties and the structures of expanded porphyrins has not been systematically investigated. The main purpose of this article is to describe the structure-property relationships of a variety of expanded porphyrins based on experimental and theoretical results, which include steady-state and time-resolved spectroscopic characterizations, non-linear absorption ability and nucleus-independent chemical shift calculations.
卟啉由四个吡咯亚基组成，是一类普遍存在的天然化合物，具有多种光物理性质。作为卟啉大环基本结构的扩展，已经有多种方法来合成具有四个以上吡咯环的扩展卟啉，从而导致大环环尺寸、平面性、π电子数和芳香性的改变。然而，扩展卟啉的光物理性质与结构之间的关系尚未得到系统研究。本文的主要目的是基于实验和理论结果描述各种扩展卟啉的结构-性质关系，这些结果包括稳态和时间分辨光谱表征、非线性吸收能力和核独立化学位移计算。
