链状锌与4,4′-联吡啶配合物的合成、晶体结构及性质

Synthesis,Crystal Structure and Properties of Chain-Like Znic 4,4'-Bipy Complex

过渡金属配位聚合物具有各种有趣的结构以及在催化、光学材料、信息存储等领域具有潜在的应用价值。因此受到化学工作者的广泛关注4．4′-联吡啶是一种很好的桥联配体，其两端的氮原子可同时与不同的金属离子配位．从而构筑具有一维、二维和三维结构的配位聚合物。

The complex of {[Zn （4,4′ -bipy） （H2O）4]·（4,4′ -bipy） · （2,6-NDS）·2H2O}n （2,6-NDS =2,6-naphthalenedisulfonate; 4,4′-bipy=4,4′-bipyridine） has been synthesized by hydrothermal method and further characterized by Xray single crystal structural analysis, fluorescence spectrum and thermogravimetrie analysis. The complex crystallizes in trielinie system, space group P1, with a=0.777 760（10） nm, b=1.152 940（10） nm, c=1.908 48（2） nm, α=88.790 0（10）°,β=78.972 0（10）°γ=89.588 0（10）° The complex forms a 1D chain-like structure through bridging 4,4′-bipy ligands, in which Zn^2＋ ion is coordinated with two nitrogen atoms of two 4,4′-bipy molecules and four water oxygen atoms. The coordination environment of the Zn^2＋ ion can be described as a distorted oetahedron. 2D （4,4） network structure is formed through hydrogen bonds between free 4,4′-bipy molecules and coordinated water molecules. Fluorescent spectrum of the complex exhibits emission peaks at 378 and 396 nm. CCDC： 722363.