A Two-Photon Dye with Favorable Photophysical Properties and Ultrahigh Polarity Sensitivity Designed by Utilizing the Tautomerism of β-Diketone
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- 作者：Yu Li ; Lingyu Zeng ; Cheng Zhong ; Xiaohu Dong ; Zhiqiang Mao ; Zhihong Liu ; Songwei Lv ; Zhengguo Zhang and Jingui Qin
- 刊名：Advanced Optical Materials
- 出版年：2017
- 出版时间：January 18, 2017
- 年：2017
- 卷：5
- 期：2
- 全文大小：826K
- ISSN：2195-1071
文摘
The designed two-photon dye with a β-diketone moiety can undergo a keto-enol equilibrium and thus impart ultrahigh polarity sensitivity. The enol form, as the main component in aprotic environments with a long conjugated chain, displays much stronger two-photon fluorescence, while the keto form in protic environments with negligible fluorescence shows good water-solubility and cell membrane permeability.