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四苯基卟啉锌在完全无水的乙氰中发生自聚现象,聚集体的形成可以通过稳态光谱来证实.吸收光谱和荧光发射光谱的红移表明四苯基卟啉锌的聚集体是卟啉之间以头对头的方式排列,即J-聚集体.进一步研究表明聚集体的形成还依赖于溶剂.光谱和激发态寿命的测定结果表明聚集体的辐射跃迁速率比单体快两倍,这表明形成的J-聚集体存在超辐射.四苯基卟啉锌的晶体呈现出杆状的结构.通过X射线的结构分析,提出了一个四苯基卟啉锌J-聚集体的结构模型.四苯基卟啉锌中的一个苯基和相邻的四苯基卟啉锌中的吡咯垂直并通过C—H…π键相互作用.最后讨论了乙氰配位后对四苯基卟啉锌中Zn—N键的影响.
Tetraphenylporphyrin Zinc self-polygons occur in completely anhydrous acetonitrile, and the formation of aggregates can be confirmed by steady state spectroscopy. The red shift of the absorption and fluorescence emission spectra shows that the aggregates of tetraphenylporphyrin zinc Is the arrangement of the porphyrins in a head-to-head fashion, ie, J-aggregates. Further studies showed that the formation of aggregates was also solvent-dependent. The determination of the spectral and excited state lifetime indicated that the aggregate radiation transition rate was faster than the monomer alone Fold, indicating that there is super-radiation in the formed J-aggregates. The crystals of tetraphenylporphyrin zinc showed a rod-like structure.A structural analysis of X-rays suggested a tetraphenylporphyrin zinc J-aggregate Structural model.A phenyl group in tetraphenylporphyrin zinc and the adjacent pyrrole in tetraphenylporphyrin zinc interact vertically via C-H ... π bond.Finally, Effect of Zn-N bond in zinc porphyrin.