atmosphere resulted in the formation of quinone-linked porphyrins in good yields. This photochemical method was successfully appliedto the synthesis of a series of perpendicularly, coplanarly, andorthogonally quinone-capped porphyrins bridged with different number of methylene chains. On the basis of the analysis of fluorescence lifetimes of these quinone-capped porphyrins, it could be concluded that the intramolecular
在
氩气气氛下,在
氯萘醌存在下,用红光(λmax > 590 nm)照射
酚连接的
卟啉的苯溶液,导致形成醌连接的
卟啉,收率很高。该光
化学方法已成功地用于合成一系列不同数目的亚甲基链桥接的垂直,共面和正交的醌封端的
卟啉。在分析这些醌封端的
卟啉的荧光寿命的基础上,可以得出结论,从
卟啉到醌的分子内电子转移反应主要是通过“穿越空间”机理进行的。