基于tdc/bidp配体Zn的金属-有机框架的合成、结构和性质

A metal-organic framework self-assembled from Zn(Ⅱ) ion,tdc and bidp ligands: synthesis,structure and property

为了构筑功能性金属-有机配合物,以2,5-thiophenedicarboxylic acid (H_2tdc)作为羧酸配体,1,4-bis(1H-imidazol-1-ylmethyl) diphenyl(bidp)作为氮质子配体,与金属Zn^(2+)离子结合,在溶剂热条件下合成了一个3D金属-有机配合物,{Zn(bidp)_(0.5)(tdc)}(1).结构分析结果表明,化合物1具有了一个3D的框架结构.四个tdc羧酸配体,分别利用羧基氧原子与两个Zn(Ⅱ)离子共同配位,得到一种双核锌结构单元,进一步形成2D的层状结构.最后,bidp配体作为双齿桥连单元,将其拓展成六连接的3D框架结构.另外,化合物1还表现出一定的发光性能.

To construct functional metal-organic complexes,a metal-organic framework based Zn(Ⅱ) ion self-assembled from 2,5-thiophenedicarboxylic acid( H2 tdc) and 1,4-bis( 1 H-imidazol-1-ylmethyl) diphenyl( bidp) ligands,{ Zn( bidp)0. 5( tdc) }( 1),has been prepared under solvothermal condition here. Compound 1 has 3D framework structure,where a kind of binuclear zinc unit is formed by two Zn(Ⅱ) ions and tdc ligands,further resulting in a 2D layer. These layer are linked by bidp ligands into a 3D,six-connected framework structure. Additionally,compound 1 also displays better luminescent property.