中文摘要：

在水热条件下合成了一个新颖的零维稀土和烟酸（3-吡啶酸）的化合物Gd2（In）6（H2O）4 （1）（In＝3-吡啶酸）。经单晶X-ray衍射分析可知，该配合物是2个钆离子通过4个烟酸上的双齿桥联的羧基连成的零维双核簇单元结构。在结构测定的基础上分别开展了磁和热微扰下的二维相关红外光谱的研究, 结果表明： 在热微扰下，羧基的伸缩振动的变化比较显著, 这可能是和羧基与中心离子的配位能力很强，造成自身的化学键的松弛有关。同时，由于和Gd离子配位的O原子的羧基的配位方式的不同，使得在热微扰下Gd—O键的伸缩振动的响应的敏感程度不同。在磁微扰下，羧基的伸缩振动的变化比较也显著，这可能是因为羧基带有一个单位的负电荷;磁微扰下的二维紫外漫反射相关光谱中，吡啶环的π—π电子跃迁和配体到金属的LMCT荷移跃迁对磁微扰的变化比较敏感。同时还研究了该配合物的荧光和热重的性质。

英文摘要：

A novel zero-dimension coordination polymer Gd2 （In） 6 （ H2O） 4 （1） （ In= 3-bipyridine acid） was synthesized under hydrothermal condition. By the analysis of single-crystal X-ray diffraction, the structure of the compound is that two Gd atoms connect with zero-dimension hi- nucleus cluster by the bridged carboxylate of four Ins. Based on the determination of the structure, the 2D correlation FTIR spectra with the perturbations of magnetism and thermal was applied. Under the perturbations of temperature, the vibration of the carboxylate has the very strong response, which is related with the strong coordinating ability of the carboxylate. At the same time, due to the different coordinated mode of the carboxylate with Gd, the response of Gd-O bonds is different under the temperature perturbations. Under the perturbations of magnetism, the vibration of the carboxylatehas also the very strong response, which may be related with one-negetive charge of the carboxylate. The 2D correlation uhravi- olet spectral with the perturbation of magnetism were investigated. Compared with one-dimension ultraviolet spectral, the transition of the π electrons in bi-pyridine ring and the charge transition from ligand to the metal have the very strong response. At the same time, the fluorescence spectral and TGA were studied.