摘要
在水热条件下,以Ce(NO3)3.6H2O和5-氨基间苯二甲酸为原料,合成了一种具有二维层状结构的铈配合物{[Ce(aip)(Haip)(H2O)2].H2O}n(H2aip=5-aminoisophthalic acid).利用红外光谱和X射线单晶衍射分析表征了其结构.结果表明,标题配合物属于三斜晶系,P-1空间群,晶胞参数为:a=0.697 70(8)nm,b=1.928 8(13)nm,c=1.196 26(14)nm,α=90.209(2)°,β=97.388(2)°,γ=93.246(2)°,V=0.903 07(18)nm3,Z=2,Dc=2.032mg/m3,F(000)=544,R1=0.024 5,wR2=0.062 2.在该配合物中,中心金属离子Ce(Ⅲ)与氧相连形成九配位构型,并通过π…π堆积和氢键形成三维扩展结构.
A cerium coordination compound, {[Ce（aip） （Haip） （H2 O）2] · H2O}n （H2 aip = 5- aminoisophthalic acid）, was synthesized under hydrothermal condition with Ce（NO3）3 · 6H2 O and 5-aminoisophthalic acid as the starting materials. The structure of as-synthesized cerium coordination compound was analyzed by means of infrared spectrometry and single-crystal X- ray diffraction. Results show that the title compound belongs to triclinic crystal system of space group P-l, with lattice parameters being a=0.69770（8）nm,b=1.9288（13）nm,c=1.19626（14）nm,α=90.209（2）°,β=97.388（2）°,γ=93.246（2）°,V=0.90307（38）nm3,Z=2,Dc=2.032mg/m3,F（000）=544,R1=0.0245, andwR2= 0.062 2. Interms of the molecular structure of the title compound, the metal center ion CeSta）is nine coordinated with oxygen atoms and further linked into three dimensional structure by π…π stacking and hy- drogen-bonding interactions.
出处
《化学研究》
CAS
2013年第3期233-236,共4页
Chemical Research
基金
河南省教育厅自然科学基础研究项目(2011A150004)
结构化学国家重点开放实验室资助项目(20110008)
关键词
铈(Ⅲ)
配合物
二维层状结构
水热合成
晶体结构
Ce（Ⅲ）
coordination compound
two dimensional layered structure
hydrothermal synthesis
crystal structure
