一维链状镍配位聚合物{[Ni(C_(10)H_8N_2)(H_2O)_3]·SO_4·2H_2O}_n的合成、晶体结构及热稳定性研究  

Synthesis,Crystal Structure and Thermal Stability Proper- ties of Nickel( Ⅱ) Coordination Polymer {[Ni(C_(10)H_8N_2)(H_2O)_3]·SO_4·2H_2O}_n

作　　者：张爱江[1] 陈长娟[1] 华志峰 崔运启[1] 

机构地区：[1]黄淮学院化学化工系,河南驻马店463000

出　　处：《化学试剂》2014年第1期76-78,96,共4页Chemical Reagents

基　　金：河南省基础与前沿技术研究资助项目(132300-410413)

摘　　要：以4,4'-联吡啶和Ni(SO4)2·6H2O为原料,在水热条件下合成了标题化合物,并用元素分析、红外光谱、X-射线单晶衍射对配合物进行了表征。测定结果表明晶体属六方晶系,P6(5)空间群,晶胞参数a=1.118 56(10)nm,b=1.118 56(10)nm,c=2.157 2(4)nm,α=90.00°,β=90.00°,γ=120.00°。标题配合物为一维链状结构,链状[Ni(C10H8N2)-(H2O)3]2n+n、SO2-4及晶格水分子之间,存在广泛的氢键作用,上述部分通过氢键作用形成复杂的三维网状结构。此外,相邻链的吡啶环间存在面对面的π…π堆积作用。通过热重分析研究该配合物的热稳定性。The title complex {[Ni（C10H8N2）（H2O）3]·SO4·2H2O}n was synthesized from 4,4＇-hipyridine and nickel sulfate hexahydrate by hydrothermal method and confirmed via elemental analysis, IR and X-ray single crystal diffraction analysis. The results reveal that it is 1D Chain Coordination Polymer structure with a hexagonal system, space group P6 （5） ,a=1.11856（10）nm,b=1.11856（10）nm,c=2.1572（4）nm,α=90.00°,β=90.00°and γ=120.00°. There exists extensive hydrogen bonding between the [ Ni （ C10H8N2 ） （ H2O） 3 ]n^2a＋ chains, sulfate anions and crystallized water molecules. The mentioned components are held together into a complicated three-dimensional network. The adjacent chains exist face-to-face π…π stacking interactions between the pyridine rings in the structure. TG result was also provided.

关 键 词：Ni(II)配位聚合物 晶体结构 热重分析 

分 类 号：O611.2[理学—无机化学]