期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2018, 期 12, 页码 1507-1512出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201701641
关键词
Carboranes; Aggregation-induced emission; Solid-state structures; Luminescence
资金
- The Institute for Synthetic Organic Chemistry
- JSPS [JP24102013]
- Grants-in-Aid for Scientific Research [15H03856] Funding Source: KAKEN
Bis-carborane-substituted benzo[1,2-b:4,5-b]dithiophenes (DCB-R, where R = H, tBu) were synthesized and characterized. Their three-dimensional conformations were tuned by introducing the tert-butyl substituent at the para-positions of the phenyl rings. Both molecules showed emission enhancement behavior, especially in the solid state. The emission quantum efficiencies were over 0.90 in the crystalline state. Moreover, it was shown that the efficiency of DCB-tBu was over 0.70 in the amorphous state. From structural analyses and mechanistic investigations, it was proposed that the tert-butyl substituents play a critical role in the formation of the trans-conformation followed by suppression of aggregation-caused quenching because of the o-carborane units located at each plane of the benzodithiophene ring.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据