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通过水热法合成了一种结构新颖的金属有机框架物{[Mn(ttac)·(bibp)·H_2O]·[bibp]·H_2O}_n(其中H4ttac为4,5-二(3′-羧基苯基)-邻苯二甲酸,bibp为4,4′-联(咪唑基)联二苯).运用X射线单晶衍射、元素分析以及红外光谱对其进行了结构表征.结构测试表明该配合物通过一维链连接成二维层状结构,相邻的层之间存在游离的bibp分子,并且与已配位的bibp分子之间存在π…π堆积弱作用力进而构建成三维孔状结构,且该孔状结构中存在游离的水分子.此外,本文还研究了该配合物的荧光性质,荧光实验结果显示与配体相比,配合物的荧光发射波长发生蓝移.
A novel metal-organic framework {[Mn (ttac) · (bibp) · H_2O] · [bibp] · H_2O} _n was synthesized by hydrothermal method, in which H4ttac is 4,5-bis Phenyl) -phthalic acid, bibp is 4,4’-bis (imidazolyl) biphenyl) .The structure was characterized by X-ray single crystal diffraction, elemental analysis and infrared spectroscopy.The structural tests showed that the coordination The objects are connected by a one-dimensional chain into a two-dimensional layered structure, with free bibp molecules existing between adjacent layers and a π ... π stacking weak force between the adjacent bibp molecules to construct a three-dimensional pore structure And the free water molecules exist in the porous structure.In addition, the fluorescence properties of the complex were also studied in this paper. Fluorescence experiments showed that the fluorescence emission wavelength of the complex was blue-shifted compared with that of the ligand.