期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 137, 期 3, 页码 1024-1027出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja511177e
关键词
-
资金
- Ministry of Education, Culture, Sports, Science, and Technology, Japan
- Kurata Memorial Hitachi Science and Technology Foundation
- Grants-in-Aid for Scientific Research [24550221, 26460057, 25600148, 26220801] Funding Source: KAKEN
A series of disilane-bridged donor-acceptor architectures 1-9 containing strong electron-donating and -withdrawing substituents were designed and synthesized in acceptable yields. The substituents substantially affected the fluorescence and nonlinear optical properties of the compounds. In the solid state, the compounds showed purple-blue fluorescence (lambda(em) = 360-420 nm) with high quantum yields (up to 0.81). Compound 3, which had p-N,N-dimethylamino and o-cyano substituents, exhibited optical second harmonic generation (activity 2.9 times that of urea, calculated molecular hyperpolarizability beta = 1.6 x 10(-30) esu) in the powder state. Density functional theory calculations for the ground and excited states indicated that both the locally excited state and the intramolecular charge transfer excited state make important contributions to the luminescence behavior.
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