A "turn-on" ESIPT fluorescence probe of 2-(aminocarbonyl)phenylboronic acid for the selective detection of Cu()

Herein, we report a highly selective fluorescent probe for the detection of Cu( ii ). The detection mechanism relies on the Cu( ii )-catalyzed oxidative hydroxylation of 2-(aminocarbonyl)phenylboronic acid into salicylamide, thus recovering the excited-state intramolecular proton transfer (ESIPT) ef...

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Bibliographic Details
Published inRSC advances Vol. 12; no. 48; pp. 31186 - 31191
Main Authors Jiang, Dandan, Zheng, Minghao, Yan, Xiaoyang, Huang, Bin, Huang, Hui, Gong, Tianhao, Liu, Kunming, Liu, Jinbiao
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 31.10.2022
The Royal Society of Chemistry
Subjects
Chemistry
Copper
Fluorescent indicators
Hydroxylation
Selectivity
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Summary:Herein, we report a highly selective fluorescent probe for the detection of Cu( ii ). The detection mechanism relies on the Cu( ii )-catalyzed oxidative hydroxylation of 2-(aminocarbonyl)phenylboronic acid into salicylamide, thus recovering the excited-state intramolecular proton transfer (ESIPT) effect and inducing more than 35-fold fluorescence enhancement. The simple structure and readily available fluorescent probe give a novel method for quantitatively detecting Cu( ii ) in the linear range of 0-22 μM, with a limit of detection down to 68 nM, and exhibiting high selectivity for Cu( ii ) over 16 other metal ions. Herein, we report a highly selective fluorescent probe for the detection of Cu( ii ).
Bibliography:https://doi.org/10.1039/d2ra04348c
Electronic supplementary information (ESI) available. See DOI
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ISSN:2046-2069
2046-2069
DOI:10.1039/d2ra04348c