以三核簇Ni_3为结点的二维层状配合物Ni_3(BTC)_2(H_2O)_8的合成、晶体结构和荧光性质  

Synthesis,crystal structure and fluorescence property of 2-D network complex Ni_3(BTC)_2(H_2O)_8 by using Ni_3 as building unit

作　　者：缪浩[1] 付洁[1] 陈蕾[1] 郭九玉[1] 张登[1] 许岩[1] 

机构地区：[1]材料化学工程国家重点实验室,南京工业大学化学化工学院,南京210009

出　　处：《中国科技论文》2013年第9期924-929,共6页China Sciencepaper

基　　金：高等学校博士学科点专项科研基金资助项目(201033221120002)

摘　　要：采用水热法合成了一种新颖的过渡金属镍配位聚合物,Ni3(BTC)2(H2O)8(H3BTC=均苯三甲酸),并通过元素分析﹑红外光谱﹑热重分析﹑X-射线粉末衍射以及荧光分析对其结构和性质进行了表征和研究。单晶结构解析表明,该化合物属于三斜晶系,P-1空间群,晶胞参数a=10.056(7),b=10.115(7),c=13.213(9);α=75.695(7)°,β=68.664(7)°,γ=65.328(7)°,V=1130.4(13)3,Z=1。在标题配合物的结构中,中心金属离子Ni(II)通过水分子桥连形成三核镍簇,而三核镍簇通过均苯三甲酸键连构成二维层状结构,层与层之间再通过氢键和π-π*堆积作用形成三维超分子结构。室温固态荧光光谱分析表明,该配合物在462nm处具有较强的荧光发射。A new metal-organic complex,Ni3（BTC）2（H2O）81,（BTC=1,3,5-benzenetricarboxylate）has been synthesized under hydrothermal condition,and characterized by element analysis,infrared spectrum,thermogravimetric analysis,fluorescent emission spectrum analysis and power X-ray diffraction.X-ray single crystal analysis reveals that complex 1belongs to triclinic system,space group P-1,cell parameters：a=10.056（7）,b=10.115（7）,c=13.213（9）;α=75.695（7）°,β=68.664（7）°,γ=65.328（7）°,V=1130.4（13）3,Z=1.The structure of 1is constructed by Ni3clusters which are bridged through O（8）w,while Ni3clusters are connected by the BTC ligands to form a 2Dlayer.The adjacent layers are further linked by hydrogen bonds andπ-π＊interactions to form a 3Dsupermolecular structure.The luminescent property of 1has also been investigated.

关 键 词：水热合成 Ni3簇 配位聚合物 荧光 

分 类 号：O641.4[理学—物理化学]