Magnesium Tetra(phenylethynyl)porphyrin: Stepwise Synthetic Route, Crystal Structures, and Longer Singlet Excited-State Lifetime than Zinc Congener
作者:Takafumi Nakagawa、Huan Wang、Anna Zieleniewska、Hiroshi Okada、Shinobu Aoyagi、Dirk M. Guldi、Yutaka Matsuo
DOI:10.1002/asia.201800994
日期:2018.10.18
Magnesium tetra(arylethynyl)porphyrins (aryl=Ph or 4‐CF3C6H4) were synthesized via 5,15‐di(triisopropylsilylethynyl)‐10,20‐di(arylethynyl)porphyrin to ensure good solubility and high synthetic yields. Magnesium tetra(phenylethynyl)porphyrin was subjected to structural analyses and physico‐chemical characterization. Single‐crystal X‐ray analysis revealed porous crystal structures featuring solvent molecules
四(芳基乙炔基)卟啉镁(芳基= Ph或4-CF 3 C 6 H 4)是通过5,15-二(三异丙基甲硅烷基乙炔基)-10,20-二(芳基乙炔基)卟啉合成的,以确保良好的溶解度和高合成产率。对四(苯基乙炔基)卟啉镁进行了结构分析和理化表征。X射线单晶分析显示多孔晶体结构在其孔中具有溶剂分子。通过飞秒瞬态吸收测量,我们得出结论,四(苯基乙炔基)卟啉镁的单重激发态寿命为7.4 ns,远比其锌同类物的2.8 ns长。这归因于镁的原子量比锌的原子量低。