期刊
DYES AND PIGMENTS
卷 170, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2019.107553
关键词
-
资金
- Agence Nationale de la Recherche (UCAJEDI project) [ANR-15-IDEX-01]
- French Government
- Region PACA [DNAfix-2014-02862, DNAfix-2014-07199]
- Agence Nationale de la Recherche [ANR-12-BS08-0003-02]
Dual-emissive deoxyadenosine analogs were engineered by compiling 7-deaza-7-ethynyl-2'-deoxyadenosine with two-color dyes, 3-HydroxyChromones (3HC), while electronically conjugating the N9-donor of the nucleobase with the 3HC carbonyl. Their spectroscopic properties were investigated in a set of solvents of different polarities. Several improvements in the 3HC photophysical features were obtained. A significant bathochromic shift moved absorption to the visible range, the extinction coefficient was almost doubled and the fluorescence emission displayed a mega-Stokes shift of the tautomer emission band (>175 nm). The ratio intensity of the dual emission demonstrated high sensitivity to polarity changes, offering a well-resolved green-yellow emission. Considering the strong donating ability of the N9, angular and reversed assemblies were also considered in order to tune the photophysics by weakening the excited-state dipole moment.
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