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卟啉是含四个吡咯分子的大环类化合物,母体卟吩自由碱的骨架如图1(1)所示。自然界中分布最广的卟啉化合物是原卟啉Ⅸ(图1(2))、酞菁(图1(3))具有和卟吩核类似的结
Porphyrin is a macrocyclic compound containing four pyrrole molecules. The skeleton of the parent porphin free base is shown in Figure 1 (1). The most widely distributed porphyrin in nature is protoporphyrin IX (Fig. 1 (2)). Phthalocyanine (Fig. 1 (3)) has a similar junction to the porphine nucleus