Synthesis, Characterization, Optical Property and Bioactivity of the Eu(Ⅲ) Complex with Aromatic Carboxylic Triazole

【摘要】 A novel complex{[Eu（H₅TIA）（C₂O₄）_0.5（H₂O）₃]·H₂O}_n of Eu（Ⅲ）with aromatic carboxylic triazole（H₇TIA=5-（4H-1,2,4-triazol-4-yl）isophthalic acid,H₂C₂O₄=oxalic acid）was hydrothermally synthesized and characterized by IR,UV-Vis,emission spectra and optical activity,and its crystal structure was determined.It crystallizes in triclinic system,space group P1 with a=7.4452（13）,b=10.776（2）,c=11.286（2）?,α=110.546（3）°,β=106.604（3）°,γ=99.031（3）°,V=486.0,GOOF=1.096,the final R=0.0196 and w R=0.0527 for 3081 observed reflections with I≥2σ（I）,R=0.0209 and wR=0.0535 for all data with（Δ/σ）_max=0.001,（Δρ）_max=0.48 and（Δρ）_min=–0.46 e·?^-3.The natural bond orbital（NBO）charges,electrostatic potential（ESP）and frontier orbital of this complex were also analyzed.The results of anti-bacterial activity against Gram positive（S. aureus）and Gram negative（E. coli）bacteria reveal that the studied complex possesses a moderate inhibiting effect,and the inhibition effect on E.coli is better.更多还原

【Abstract】 A novel complex{[Eu（H₅TIA）（C₂O₄）_0.5（H₂O）₃]·H₂O}_n of Eu（Ⅲ）with aromatic carboxylic triazole（H₇TIA=5-（4H-1,2,4-triazol-4-yl）isophthalic acid,H₂C₂O₄=oxalic acid）was hydrothermally synthesized and characterized by IR,UV-Vis,emission spectra and optical activity,and its crystal structure was determined.It crystallizes in triclinic system,space group P1 with a=7.4452（13）,b=10.776（2）,c=11.286（2）?,α=110.546（3）°,β=106.604（3）°,γ=99.031（3）°,V=486.0,GOOF=1.096,the final R=0.0196 and w R=0.0527 for 3081 observed reflections with I≥2σ（I）,R=0.0209 and wR=0.0535 for all data with（Δ/σ）_max=0.001,（Δρ）_max=0.48 and（Δρ）_min=–0.46 e·?^-3.The natural bond orbital（NBO）charges,electrostatic potential（ESP）and frontier orbital of this complex were also analyzed.The results of anti-bacterial activity against Gram positive（S. aureus）and Gram negative（E. coli）bacteria reveal that the studied complex possesses a moderate inhibiting effect,and the inhibition effect on E.coli is better.更多还原