Site-Selective Hydrogen-Bonding-Induced Fluorescence Quenching of Highly Solvatofluorochromic GFP-like Chromophores
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- 作者：Guan-Jhih Huang ; Jinn-Hsuan Ho ; Ch. Prabhakar ; Yi-Hung Liu ; Shie-Ming Peng ; Jye-Shane Yang
- 刊名：Organic Letters
- 出版年：2012
- 出版时间：October 5, 2012
- 年：2012
- 卷：14
- 期：19
- 页码：5034-5037
- 全文大小：245K
- 年卷期：v.14,no.19(October 5, 2012)
- ISSN：1523-7052
文摘
The unconstrained green fluorescence protein (GFP)-like chromophore m-DMABDI displays a high solvatofluorochromicity in aprotic solvents, but the fluorescence is quenched in protic solvents. According to the site-specific intramolecularly hydrogen-bonded analogs 1OH and 2OH, the hydrogen bonding to the carbonyl oxygen is more important than that to the imino nitrogen of the imidazolinone group in the fluorescence quenching.