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
DOI:10.1002/cplu.201900133
日期:2019.6
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
使用两步迭代合成策略合成了低聚(1,8-py烯)的单体至戊二烯系列。三聚体,四聚体和五聚体是在室温下缓慢互变的阻转异构体的混合物(如变温NMR分析所示)。如POM,DSC和SWAXS分析所示,它们是远低于室温的液体。这些低聚物在液体状态和稀溶液中均具有高荧光性(λF,max = 444-457 nm,φF= 0.80),对它们的光物理性质的研究表明,离域作用在其激发态中的作用大于在激发态中的作用。相关的pyr基低聚物。