A new coordination polymer [Zn(C14H18SO6)(C28H22N4)]n, has been synthesized under solvothermal conditions and characterized by single crystal X-ray structure analyses, thermogravimetric analyses, powder X-ray diffraction and solid-state photoluminescent measurements. The Zn2+ ion has a square pyramidal coordination and two neighbouring Zn2+ ions are bridged together by four carboxylate groups of 4,4-dicarboxyldiphenyl sulfone to generate a paddle wheel dinuclear zinc structure. The dizinc paddle wheel is linked by two V-shaped linker 4,4-dicarboxyldiphenyl sulfone via carboxylate groups to form an infinite 1-D chain which is further connected by 4,4-bis(benzimidazole-1-ylmethyl)biphenyl through sharing the dizinc paddlewheel into an infinite 2D sheet framework. The framework is further strengthened by p-p interaction between benzimidazol rings of 4,4-bis(benzimidazole-1-ylmethyl)biphenyl ligand and the benzene ring of 4,4-dicarboxyldiphenyl sulfone ligand. The TG analysis shows that the framework of the complex is stable up to 370 °C. Moreover, the complex exhibits strong photoluminescence in the solid state at room temperature.
合成了一种新的配位聚合物 [Zn(C14H18SO6)(
C28H22N4)]n,采用溶剂热条件,并通过单晶X射线结构分析、热重分析、粉末X射线衍射和固态光致发光测量进行了表征。Zn2+离子具有方锥形配位,与两个相邻的Zn2+离子通过4,4-二羧基二苯基磺酰基的四个
羧酸根桥联在一起,形成一个桨轮二核
锌结构。该二
锌桨轮通过两个V形桥联体4,4-二羧基二苯基磺酰基通过
羧酸根连接,形成无限的1-D链,进一步通过4,4-二(
苯并咪唑-1-基甲基)
联苯与二
锌桨轮共享,组成一个无限的二维框架。该框架进一步通过4,4-二(
苯并咪唑-1-基甲基)
联苯配体的
苯并咪唑环与4,4-二羧基二苯基磺酰基
配体的苯环之间的π-π相互作用得到增强。热重分析显示,该复合物的框架在370°C以下是稳定的。此外,该复合物在室温下的固态表现出强烈的光致发光。