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A Two‐Photon Dye with Favorable Photophysical Properties and Ultrahigh Polarity Sensitivity Designed by Utilizing the Tautomerism of β‐Diketone
Author(s) -
Li Yu,
Zeng Lingyu,
Zhong Cheng,
Dong Xiaohu,
Mao Zhiqiang,
Liu Zhihong,
Lv Songwei,
Zhang Zhengguo,
Qin Jingui
Publication year - 2017
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201600696
Subject(s) - moiety , tautomer , fluorescence , enol , polarity (international relations) , photochemistry , materials science , conjugated system , combinatorial chemistry , chemistry , organic chemistry , optics , physics , polymer , biochemistry , cell , composite material , catalysis
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.