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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.
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页码:2151 / 2154
页数:4
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