2-氨基对苯二甲酸构筑的一维链状镉配位聚合物的合成及晶体结构  

Synthesis and Crystal Structure of 1D Chain Cadmium Coordination Polymer Constructed by 2-Aminoterephthalate

作　　者：刘清霞[1] 刘宝林[2] 陶偌偈[1,2] 

机构地区：[1]河南大学化学化工学院,河南开封475004 [2]河南大学基础实验教学中心,河南开封475004

出　　处：《河南大学学报（自然科学版）》2013年第5期512-515,共4页Journal of Henan University:Natural Science

基　　金：河南大学校内科研基金资助项目(2010YBZR007和2010YBZR015)

摘　　要：合成了一种新颖的一维链状镉配位聚合物[Cd2(2-atp)(phen)2(Cl2)]n(2-atp为2-氨基对苯二甲酸,phen为邻菲咯啉),利用红外光谱和X射线单晶衍射表征了产物的结构,利用元素分析测定了其元素组成,利用热重分析考察了其热分解行为.结果表明,标题化合物属于三斜晶系,P-1空间群,晶胞参数为:a=0.735 52(7)nm,b=0.995 40(10)nm,c=1.055 71(10)nm,α=77.071 0(10)°,β=87.273 0(10)°,γ=75.697 0(10)°,V=0.729 95(12)nm3,Z=2,Dc=1.934g/cm3,μ=1.691mm-1,F(000)=418,R1=0.045 7,wR2=0.167 1.配合物中镉离子采用六配位的八面体构型,双核镉单元片段是由两个相似的单核片段通过两个氯离子连接而成的.双核镉单元片段上的镉离子通过2-氨基对苯二甲酸分子上的两个羧基上的氧原子连接形成一维链.A new 1D chain cadmium coordination polymer [Cd2 （2-atp） （phen）2 （Cl2）], （2 atp = 2-aminoterephthalic acid, phen= 1, 10 phenanthroline） was synthesized. The structure of the product was characterized by means of infrared spectrometry and single crystal X-ray diffraction. The elemental composition of the product was determined by elemental analysis, and its thermal decomposotion behavior was investigated by thermogravimetric analysis. The crystal analysis indicates that the title compound belongs to triclinic, space group P 1 with lattice parameters a=0.73552（7）nm,b=O.99540（10）nm,c=1.05571（10）nm,α=77.0710（10）°,β=87.2730（10）°,γ-75.6970（10）°,V=0.72995（12）nm3,Z=2,Dc=1.934g/cm2,μ=1.691mm,F（000）=418,R1=O.0457,wR2=O.1671. The cadmium ion is six-coordinated in octahedral configuration, cadmium unit is made up of two similar mononuclear fragments which connected by two chlorine ions. The one-dimensional network structure is formed through the oxygen atoms of carboxyl group of 2-aminoterephthalic acid molecules.

关 键 词：一维链 镉配合物 2-氨基对苯二甲酸 晶体结构 

分 类 号：O641[理学—物理化学]