Self-twisting for macrochirality from an achiral asterisk molecule with fluorescence-phosphorescence dual emission

被引:0
|
作者
Hongwei Wua [1 ,2 ]
Bin Wu [1 ]
Xiyuan Yu [1 ]
Pei Zhao [1 ]
Wenbo Chen [3 ]
Liangliang Zhu [1 ]
机构
[1] State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University
[2] Shanghai Key Lab of Polymer and Electrical Insulation, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University
[3] Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power
基金
上海市自然科学基金;
关键词
Achiral molecules self-twisting; Macrochirality; Fluorescence-phosphorescence; Dual emission;
D O I
暂无
中图分类号
TB30 [工程材料一般性问题];
学科分类号
0805 ; 080502 ;
摘要
Understanding of the role of supramolecular chirality for tuning material optoelectronic properties has been restricted by the limited number of cases. A particular challenge is to impose supramolecular chirality onto multicolor luminescent systems that can emit in aggregation state. Here we present a selfassembly strategy from a well-selected asterisk molecule for generating supramolecular chirality with fluorescence-phosphorescence dual emission. The work takes advantages of(1) achiral chemical structure dependent peculiar self-assembly that can spontaneously undergo symmetry breaking to produce macrochirality, and(2) the assembly process can be monitored by time which due to the crystallization-driven self-assembly by self-twisting, allowing a self-progressing chiral amplification. A multicolor luminescence induced by the fluorescence-phosphorescence dual emission along with such a self-assembly behavior was also observed at a single solution system versus the time. The self-twisting chiral self-assembly fashion provides new prospects for understanding the establishment of nanochirality from achiral molecular building blocks.
引用
收藏
页码:2151 / 2154
页数:4
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