中文摘要：

合成了一个新的配合物[Eu（4-MOBA）3（terpy）（H2O）]2（4-MOBA：4-甲氧基苯甲酸根,terpy：2,2′：6′,2′′-三联吡啶）。采用傅里叶变换红外（FTIR）光谱、元素分析和X射线粉末衍射（XRD）技术对标题配合物进行了表征,用X射线单晶衍射仪测定了配合物的晶体结构,在配合物中每个Eu3＋离子与一个三联吡啶分子、一个水分子和三个羧酸分子结合,配位数为9,羧酸基团的配位模式包含三种：双齿螯合,桥连双齿,单齿。根据热重-差示扫描量热/傅里叶变换红外（TG-DSC/FTIR）联用技术,研究了配合物的热分解机理。配合物的发射光谱显示出Eu3＋离子的特征荧光发射,表明三联吡啶和4-甲氧基苯甲酸在该体系中可作为敏化集团。另外,文中还讨论了配合物对白色念珠菌和大肠杆菌的抑菌活性。

英文摘要：

A new complex [Eu（4- MOBA）3（terpy）（H2O）]2（4- MOBA： 4- methoxybenzoate, terpy： 2,2′：6′,2′′-terpyridine） was synthesized. The complex was characterized using Fourier transform infrared（FTIR）spectroscopy, elemental analysis, and powder X- ray diffraction（XRD）. The structure of the complex was determined using single-crystal XRD. In the complex, each Eu3＋ion is nine coordinated to one terpy molecule,one water molecule and three carboxylate groups. The carboxylate groups are bonded to the Eu3＋ion in three modes： bidentate, bridging bidentate, and monodentate. Based on thermogravimetry- differential scanning calorimetry/Fourier transform infrared（TG-DSC/FTIR） measurements, we determined the thermal decomposition mechanism. The emission spectra of the complex exhibited characteristic luminescence, suggesting that terpy and 4-methoxybenzoic acid can act as sensitizing chromophores in this system. Also, bacteriostatic activities for the complex to Candida albicans and Escherichia coli are discussed.