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Articles by Wei-Na Wu
Total Records ( 2 ) for Wei-Na Wu
  Wei-Na Wu , Fei-Xiang Cheng , Lan Yan and Ning Tang
  Two aryl amide ligands, N-(p-tolyl)-2-(quinolin-8-yloxy)acetamide (L1) and N-(4-chlorophenyl)-2-(quinolin-8-yloxy)acetamide (L2), were synthesized. With these ligands, two series of lanthanide(III) complexes were prepared, Ln(Ln)2(NO3)3 (n = 1, 2; Ln = La, Sm, Eu, Gd, Dy), and characterized by the elemental analyses, molar conductivity, 1H NMR spectra, IR spectra and TG-DTA. The fluorescence properties of the complexes and the triplet state energies of the ligands were studied in detail. In addition, the quantum yields of both Eu(III) complexes and Eu(L0)2(NO3)3 [where L0 is N-(phenyl)-2-(quinolin-8-yloxy)acetamide] 1 were calculated. The results indicate that among the lowest triplet energies (T) of the three ligands, that of L2 is most suitable to the resonance level (5D1) of Eu(III) ion. Furthermore, Eu(L2)2(NO3)3 has the highest fluorescence intensity and quantum yield of the three Eu(III) complexes.
  Yuan Wang , Wei-Na Wu , Qian Wang and Zheng-Yin Yang
  Cu(II) complexes of three bis(pyrrol-2-yl-methyleneamine) ligands were synthesized and characterized by elemental analyses, mass spectra, and IR spectra. X-ray diffraction analysis shows that [CuL3]2 is a dinuclear complex with an extremely distorted square-planar geometry. Furthermore, the antioxidant activities of the compounds have been investigated. The electrochemical properties of the Cu(II) complexes have also been studied by cyclic voltammetry. The Cu(II) complexes show similar superoxide dismutase (SOD) activity compared with that of the native Cu, Zn-SOD.
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