五聚体
化学
三聚体
单体
四聚体
芘
阿托品
激发态
低聚物
质子核磁共振
光化学
离域电子
高分子化学
二聚体
立体化学
有机化学
聚合物
酶
核物理学
物理
生物化学
作者
Joshua C. Walsh,David T. Hogan,Kerry‐Lynn M. Williams,Simon D. Brake,Gandikota Venkataramana,Tara A. Misener,Brandon J. Wallace,Richard P. Johnson,David W. Thompson,Yuming Zhao,Brian D. Wagner,Graham J. Bodwell
标识
DOI:10.1002/cplu.201900133
摘要
A monomer-through-pentamer series of oligo(1,8-pyrenylene)s was synthesized using a two-step iterative synthetic strategy. The trimer, tetramer, and pentamer are mixtures of atropisomers that interconvert slowly at room temperature (as shown by variable-temperature NMR analysis). They are liquids well below room temperature, as indicated by POM, DSC and SWAXS analysis. These oligomers are highly fluorescent both in the liquid state and in dilute solution (λF,max = 444-457 nm, φF = 0.80) and an investigation of their photophysical properties demonstrated that delocalization plays a larger role in their excited states than it does in related pyrene-based oligomers.
科研通智能强力驱动
Strongly Powered by AbleSci AI