论文部分内容阅读
利用水热法成功合成了基于[Zn6(μ6-O)]簇和三角柔性羧酸H3TCOPM(TCOPM=三(对-苯甲酸)甲烷)构筑的配合物{[Zn6(μ6-O)(TCOPM)2]·5H2O·4NO3·DMF}n(DMF=N,N-二甲基甲酰胺),并通过单晶衍射﹑X射线粉末衍射(PXRD)、红外光谱、热重分析和元素分析对其进行了晶体结构的解析和表征.结果表明,配合物属于单斜晶系,C2/c空间群,H3TCOPM中3个羧酸全部脱质子参与配位,构筑成三维(3D)微孔网络结构.对其热稳定性和荧光性质进行了探讨,其荧光蓝移现象可能与空间构型对称性减少直接导致有效能量传递的途径减少有关.
The complex {[Zn6 (μ6-O) (TCOPM)] based on [Zn6 (μ6-O)] clusters and triangular flexible carboxylic acid H3TCOPM (TCOPM = tris- 2] · 5H2O · 4NO3 · DMF} n (DMF = N, N-dimethylformamide) and subjected to single crystal diffraction, X-ray powder diffraction (PXRD), infrared spectroscopy, thermogravimetric analysis and elemental analysis The results show that the complexes belong to the monoclinic space group C2 / c, and all the three carboxylic acids in H3TCOPM participate in coordination to form a three-dimensional (3D) microporous network structure. Its thermal stability and fluorescence properties were discussed. The fluorescence blue-shift phenomenon may be related to the decrease of the symmetry of the space configuration, which directly leads to the reduction of the effective energy transfer pathway.