Tailoring an HSO4− anion hybrid receptor based on a phenazine derivative

A catechol-functionalized phenazine imidazole ( PD ) was tailored with 2,3-diaminophenazine and 3,4-dihydroxy benzaldehyde, and it served as a hybrid acceptor for capturing HSO 4 − anions. The selectivity and sensitivity of the PD receptor for anion sensing were studied. It was found that the PD rec...

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Bibliographic Details
Published in:Photochemical & photobiological sciences 2020, Vol.19 (10), p.1373-1381
Main Authors: Qi, Xiao-Ni, Dong, Hong-Qiang, Yang, Hai-Long, Qu, Wen-Juan, Zhang, You-Ming, Yao, Hong, Lin, Qi, Wei, Tai-Bao
Format: Article
Language:English
Subjects:
Anions
Benzaldehyde
Biochemistry
Biomaterials
Catechol
Chemistry
Fluorescence
Hydrogen bonds
Imidazole
Ions
Phenazine
Physical Chemistry
Plant Sciences
Receptors
Selectivity
Sensitivity
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Summary:A catechol-functionalized phenazine imidazole ( PD ) was tailored with 2,3-diaminophenazine and 3,4-dihydroxy benzaldehyde, and it served as a hybrid acceptor for capturing HSO 4 − anions. The selectivity and sensitivity of the PD receptor for anion sensing were studied. It was found that the PD receptor could not only display a preferable sensitivity to HSO 4 − ions with a “turn–off” fluorescence response, but also have a strong anti-interference ability toward other common anions, especially basic anions such as CH 3 COO − , HPO 4 2− , and H 2 PO 4 − . The anion recognition mechanism of PD towards HSO 4 − is based on multiple hydrogen bond interactions. Finally, the strips for anion detection were prepared, which were verified to be a convenient and high-efficiency test kit for detecting HSO 4 − ions with the naked eye.
ISSN:1474-905X
1474-9092
DOI:10.1039/d0pp00159g