Synthesis of a Eu complex based on benzonitrile hydrolysis as the first luminescent probe for clinafloxacin

Hydrolysis of benzonitrile to benzoate was realized for constructing a zero-dimensional dinuclear europium complex [Eu 2 (pip) 2 (PhCOO) 6 ] via a hydrothermal reaction, where pip denotes 2-phenylimidazo[4,5- f ][1,10]phenanthroline. This complex is very insoluble and stable in water from pH 3 to 10...

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Published inCrystEngComm Vol. 23; no. 19; pp. 362 - 368
Main Authors Ruan, Zhong-Yu, Lu, Yong-Fang, Lv, Xi, Wu, Jian-Zhong, Ou, Yong-Cong, Cai, Yue-Peng
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 21.05.2021
Subjects
Antibiotics
Benzoates
Benzonitrile
Crystallography
Electron transfer
Europium
Hydrolysis
Hydrothermal reactions
Luminescence quenching
Photoluminescence
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Summary:Hydrolysis of benzonitrile to benzoate was realized for constructing a zero-dimensional dinuclear europium complex [Eu 2 (pip) 2 (PhCOO) 6 ] via a hydrothermal reaction, where pip denotes 2-phenylimidazo[4,5- f ][1,10]phenanthroline. This complex is very insoluble and stable in water from pH 3 to 10. It exhibits strong characteristic Eu( iii ) red photoluminescence, which could be significantly quenched by clinafloxacin without remarkable disturbance by other common salts or fluoroquinolone antibiotics. The luminescence quenching might be the result of photoinduced electron transfer from excited pip or benzoate to clinafloxacin. This complex is the first convenient luminescent sensor for clinafloxacin and the limit of detection is determined to be 0.21 μM. [Eu 2 (pip) 2 (PhCOO) 6 ] synthesized via hydrolysis of benzonitrile shows specific and quantitative photoluminescence quenching by clinafloxacin.
Bibliography:CCDC
10.1039/d1ce00315a
2064842
For crystallographic data in CIF or other electronic format see DOI
ISSN:1466-8033
1466-8033
DOI:10.1039/d1ce00315a