High Fluorescence Efficiencies and Large Stokes Shifts of Folded Fluorophores Consisting of a Pair of Alkenyl-Tethered, π-Stacked Oligo-p-phenylenes,Organic Letters

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High Fluorescence Efficiencies and Large Stokes Shifts of Folded Fluorophores Consisting of a Pair of Alkenyl-Tethered, π-Stacked Oligo-p-phenylenes
Organic Letters ( IF 4.9 ) Pub Date : 2015-12-03 00:00:00 , DOI: 10.1021/acs.orglett.5b03152
Bairong He ₁ , Han Nie ₁ , Long Chen ₁ , Xiaoding Lou ₂ , Rongrong Hu ₁ , Anjun Qin ₁ , Zujin Zhao ₁ , Ben Zhong Tang _{1,

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Affiliation

A series of pure hydrocarbon fluorophores containing a pair of π-stacked oligo-p-phenylenes have been synthesized and analyzed by NMR and X-ray crystallography. They show good fluorescence in solutions and enhanced fluorescence in the aggregated state. Large Stokes shifts (up to 214 nm) have been achieved in these folded fluorophores in virtue of intramolecular energy transfer, and balanced structural rigidity and flexibility. These folded fluorophores provide perfect models for understanding the energy and charge transfer process in π-stacked systems.

中文翻译：

高的荧光效率和折叠的荧光体的大斯托克斯位移，该荧光团由一对链烯基连接的，π堆叠的寡聚对亚苯基组成

已经合成了一系列含有一对π堆积的低聚对亚苯基的纯烃荧光团，并通过NMR和X射线晶体学进行了分析。它们在溶液中显示出良好的荧光，并且在聚集状态下显示出增强的荧光。由于分子内能量转移以及平衡的结构刚性和柔韧性，这些折叠的荧光团实现了大的斯托克斯位移（最大214 nm）。这些折叠的荧光团为理解π堆叠系统中的能量和电荷转移过程提供了理想的模型。

更新日期：2015-12-03

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