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Two macrocycle-based sensors for anions sensing.


ABSTRACT: Two macrocyclic bis-benzimidazolium salts 2 and 4 (23-membered for 2 and 25-membered for 4) were prepared, and their structures were confirmed by X-ray crystallography, 1H NMR and 13C NMR spectroscopy. The research of anion recognitions using 2 or 4 as hosts were carried out with the methods of fluorescence and ultraviolet spectroscopy, 1H NMR titrations, MS and IR spectra. The experiment results show that 2 can detect acetate anion and 4 can detect nitrate anion with favorable selectivity and sensitivity.

SUBMITTER: Liu Y 

PROVIDER: S-EPMC6345996 | BioStudies | 2019-01-01T00:00:00Z

REPOSITORIES: biostudies

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