具有(6~3.10~3)(6~3)拓扑结构的三维Zn^(2+)配位聚合物的合成及结构研究

Synthesis and Structure of a Novel Three-dimensional Zn^(2+) Coordination Polymer with Topology(6~3.10~3)(6~3)

以4,4′-联吡啶(bipy)、2,5-二巯基-1,3,4-三噻唑(H2SSS)为桥联配体,水热法合成了一新颖的三维结构配位聚合物[Zn2(SSS)2(bipy)]n(1),并用元素分析、IR和差热分析对配合物进行了表征,X-射线单晶衍射确定了配合物的结构。在该配合物中,每个配阴离子SSS2-桥联3个Zn2+,同时每个Zn2+连接3个配体构成一个与ab平面平行的二维网状结构,相邻网状结构再通过4,4′-bipy连接构成三维微空结构。

A three-dimensional Zn 2＋ coordination polymer [Zn2 （SSS）2 （bipy）]. was prepared under hydrothermal method with 4,4＇-bipyridine （bipy） and tridentate 1,3,4-thiadiazole-2,5-disulfide （SSS 2-） as ligands and characterized by elemental analysis,IR spectrum and TG. Its structure was determined by single-crystal X-ray diffraction. In the title complex,each SSS2- anion links three Zn 2＋ ions while each Zn 2＋ links three SSS 2- anions,constructing a two-dimensional plane which is parallel to the ab plane. Neighboring 2-D planes are interlinked by bridging 4,4＇-bipyridine molecules,resulting in a novel 3D polymeric architecture. This 3D architecture represents a new topology with schlafli symbol （6 3. 10 3） （6 3）. The title complex shows high thermal stability （up to 350 ℃）.