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 HSO4- 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 HSO4- ions with a "turn-off"fluorescence response, but also have a strong anti-interference ability toward other common anions, especially basic anions such as CH3COO-, HPO42-, and H2PO4-. The anion recognition mechanism of PD towards HSO4- 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 HSO4- ions with the naked eye.
CITATION STYLE
Qi, X. N., Dong, H. Q., Yang, H. L., Qu, W. J., Zhang, Y. M., Yao, H., … Wei, T. B. (2020). Tailoring an HSO4-anion hybrid receptor based on a phenazine derivative. Photochemical and Photobiological Sciences, 19(10), 1373–1381. https://doi.org/10.1039/d0pp00159g
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