Structural Modulation of Solid-State Emission of 2,5-Bis(trialkylsilylethynyl)-3,4-diphenylsiloles

被引:204
作者
Zhao, Zujin [1 ]
Wang, Zhiming [2 ]
Lu, Ping [1 ]
Chan, Carrie Y. K. [1 ]
Liu, Dandan
Lam, Jacky W. Y. [1 ]
Sung, Herman H. Y. [1 ]
Williams, Ian D. [1 ]
Ma, Yuguang [2 ]
Tang, Ben Zhong [1 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China
[2] Jilin Univ, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China
基金
美国国家科学基金会;
关键词
aggregation-induced emission; fluorescence; luminescence; siloles; structure-activity relationships; AGGREGATION-INDUCED EMISSION; LIGHT-EMISSION; SILOLE; PHOTOLUMINESCENCE; SUBSTITUENTS; MOLECULES; POLYMERS;
D O I
10.1002/anie.200903698
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Solidarity means strength: In new silole luminogens, the solid aggregates are stronger emitters than isolated molecules. The solid-state emission is tunable by varying molecular structures of the luminogens. Increasing bulkiness of the substituents weakens intermolecular interactions and restricts intramolecular rotations, leading to a blue shift in emission color and a great increase in emission efficiency (see examples in picture). © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:7608 / 7611
页数:4
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