二维配位聚合物[Ni(C_8H_6NO_4)_2(H_2O)_2]n·2nH_2O的合成和晶体结构  

Synthesis and Crystal Structure of a Two-Dimensional Coordination Polymer:[Ni(C_8H_6NO_4)_2(H_2O)_2]n·2nH_2O

作　　者：张来军[1] 陈发云[1] 李燕红[1] 王勇华[1] 陈骁[1] 

机构地区：[1]上饶师范学院,江西上饶334001

出　　处：《上饶师范学院学报》2012年第6期48-52,60,共6页Journal of Shangrao Normal University

基　　金：上饶师范学院博士科研启动基金;江西省自然科学基金(No.20122bab203002)

摘　　要：在N,N-二甲基甲酰胺/水混合溶剂中,5-氨基间苯二甲酸与六水氯化镍通过溶剂/水热反应得到了二维的配位聚合物单晶[Ni(C8H6NO4)2(H2O)2]n.2nH2O;添加水杨醛有助于得到较大的单晶。X-射线单晶衍射分析表明,标题配合物属于单斜晶系,C2/c空间群,晶胞参数为a=14.195(3),b=11.150(2),c=12.578(3),β=113.52(3)°,V=1825.5(6)3,Z=4,Dc=1.787g.cm-3,μ=1.14 mm-1,F(000)=1016。在配合物中,Ni(II)为六配位的八面体构型;5-氨基间苯二甲酸只有一个氨基氮原子和一个脱去质子的羧酸氧原子与Ni(II)配位,其另一个羧酸保持质子化形式不参与配位。红外光谱分析进一步证实了配体的配位模式。Single crystals of a two-dimensional coordination polymer,[Ni(C8H6NO4)2(H2O)2]n·2nH2O,were synthesized by solvo/hydrothermal reaction of 5-aminoisophthalic acid with nickel chloride hexahydrate in N,N-dimethylformamide/water mixed solvent.Addition of salicylaldehyde into reaction mixture contributed to obtaining larger single crystal complexes.X-ray diffraction analysis showed that the obtained coordination polymer was six-coordinated octahedral structure;5-aminoisophthalic acid only provided a nitrogen atom of amine group and an oxygen atom of one deprotonated carboxylic group to coordinate with Ni2+,while the other carboxyl group remained the protonated form;Infrared spectroscopy was applied to further confirm the coordination mode of the ligand used.

关 键 词：5-氨基间苯二甲酸 溶剂 水热反应 配位聚合物 合成 晶体结构 

分 类 号：O641.4[理学—物理化学]