作者
Jianguo Wang, Xinggui Gu, Pengfei Zhang, Xiaobo Huang, Xiaoyan Zheng, Ming Chen, Haitao Feng, Ryan TK Kwok, Jacky WY Lam, Ben Zhong Tang
发表日期
2017/11/22
期刊
Journal of the American Chemical Society
卷号
139
期号
46
页码范围
16974-16979
出版商
American Chemical Society
简介
Recent years have witnessed the significant role of anion−π+ interactions in many areas, which potentially brings the opportunity for the development of aggregation-induced emission (AIE) systems. Here, a new strategy that utilized anion−π+ interactions to block detrimental π–π stacking was first proposed to develop inherent-charged AIE systems. Two AIE-active luminogens, namely, 1,2,3,4-tetraphenyloxazolium (TPO-P) and 2,3,5-triphenyloxazolium (TriPO-PN), were successfully synthesized. Comprehensive techniques such as single-crystal analysis, theoretical calculation, and conductivity measurement were used to illustrate the effects of anion−π+ interactions on the AIE feature. Their analogues tetraphenylfuran (TPF) and 2,4,5-triphenyloxazole (TriPO-C) without anion−π+ interactions suffered from the aggregation-caused emission quenching in the aggregate state, demonstrating the important role of anion …
引用总数
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