Construction of Zn(II)/Cd(II)–Yb(III) Schiff Base Complexes for the NIR Luminescent Sensing of Fluoroquinolone Antibiotics

Two NIR luminescent Zn­(II)/Cd­(II)–Yb­(III) complexes were obtained by the use of a Schiff base ligand with a binaphthyl backbone. Cd­(II)–Yb­(III) complex 2 has a triangular structure and exhibits interesting luminescent sensing activity to antibiotics, in particular to ciprofloxacin (CPFX) and no...

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Published in:Inorganic chemistry 2021-04, Vol.60 (8), p.5764-5770
Main Authors: Niu, Mengyu, Yang, Xiaoping, Ma, Yanan, Hao, Wenxin, Leng, Xilong, Schipper, Desmond
Format: Article
Language:English
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Summary:Two NIR luminescent Zn­(II)/Cd­(II)–Yb­(III) complexes were obtained by the use of a Schiff base ligand with a binaphthyl backbone. Cd­(II)–Yb­(III) complex 2 has a triangular structure and exhibits interesting luminescent sensing activity to antibiotics, in particular to ciprofloxacin (CPFX) and norfloxacin (NFX) due to the inner filter effect. The limits of the detection of 2 to CPFX and NFX are 0.18 and 0.36 μM, respectively, and the fluorescence sensitivity is not changed with the existence of other antibiotics tested in this study.
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.1c00037