Magnesium Tetra(phenylethynyl)porphyrin: Stepwise Synthetic Route, Crystal Structures, and Longer Singlet Excited‐State Lifetime than Zinc Congener,Chemistry - An Asian Journal

当前位置： X-MOL 学术 › Chem. Asian J. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Magnesium Tetra(phenylethynyl)porphyrin: Stepwise Synthetic Route, Crystal Structures, and Longer Singlet Excited‐State Lifetime than Zinc Congener
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2018-09-19 , DOI: 10.1002/asia.201800994
Takafumi Nakagawa ₁ , Huan Wang ₂ , Anna Zieleniewska ₃ , Hiroshi Okada ₁ , Shinobu Aoyagi ₄ , Dirk M. Guldi ₃ , Yutaka Matsuo _{1,

2}

Affiliation

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 in their pores. From femtosecond transient absorption measurements we concluded that the singlet excited‐state lifetime of magnesium tetra(phenylethynyl)porphyrin is with 7.4 ns substantially longer than that of its zinc congener with 2.8 ns; this is attributed to the lower atomic weight of magnesium compared with zinc.

中文翻译：

四（苯基乙炔基）卟啉镁：逐步合成路线，晶体结构以及比锌同类物更长的单重态激发态寿命

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。

更新日期：2018-09-19

点击分享查看原文

点击收藏

阅读更多本刊最新论文