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- W3018699249 abstract "A series of novel 2-quinolone ligands and their corresponding Eu(III) complexes were prepared. The effect of different solvents, different ligand concentrations and different substituents on the fluorescence intensity of ligands were investigated in detail. The fluorescence intensity of Eu(III) complexes were studied by comparing different substituents on the ligand. The results indicate that all ligands show the strongest fluorescence intensity in ethanol with the ligand concentration of 50 μM. Among these ligands, the ligand (K6) containing -COOCH3 group owns the strongest fluorescence intensity and the corresponding fluorescence quantum yield reaches 0.317. All complexes exhibit characteristic red light of Eu(III) ions with good thermal stability. The effect of diverse substituents on the fluorescence intensity is ordered: -COOCH3>-Cl> -Br> -OCH3>-CH3>-H, which indicates the complex [EuK6(NO3)3]·2H2O with the strongest electron-donating group (-COOCH3) possesses the strongest fluorescence intensity. The above analysis shows that the ligand (K6) and corresponding Eu(III) complex [EuK6(NO3)3]·2H2O own the best fluorescence property, which has an outstanding application prospect in the field of optical materials and biomedicine materials." @default.
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- W3018699249 date "2020-08-01" @default.
- W3018699249 modified "2023-10-18" @default.
- W3018699249 title "Preparation and fluorescence properties of novel 2-quinolone derivatives and their corresponding Eu(III) complexes" @default.
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- W3018699249 doi "https://doi.org/10.1016/j.colsurfa.2020.124861" @default.
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