摘要
由水热法合成了一个混核金属配位聚合物{[CoEu2(INAIP)4(H2O)6].2.5H2O}n(1)(INAIP2-=异烟酰胺基间苯二甲酸根),并对其进行了元素分析、IR及X-射线衍射法表征。晶体结构研究表明:配合物1属于三斜晶系,P1空间群。配合物1是由配体异烟酰胺基间苯二甲酸连接而成的二维双层状结构,该二维层通过氢键拓展为三维超分子结构。配合物1的荧光测试研究表明它具有典型的稀土铕离子红色荧光。
A 3d-4f coordination polymer {[CoEu2(INAIP)4(H2O)6]·2.5H2O}n(1) was obtained by hydrothermal assembly of Co(OAc)2·4H2O and Eu(NO3)3·6H2O with H2INAIP(5-(isonicotinamido)isophthalic acid).Complex 1 crystallizes in triclinic,space group P1 with a=1.008 89(13) nm,b=1.082 34(14) nm,c=2.979 5(4) nm,V=3.200(7) nm3,Z=1,C112H90Co2Eu4N16O57,Mr=3 297.70,Dc=1.711 g·cm-3,μ=2.285 mm-1,F(000)=1 636,Rint=0.025 8,R=0.049 2,wR=0.126 3.Single-crystal X-ray diffraction analysis revealed that each INAIP2-ligand uses its two carboxyl groups to connect two/three lanthanide centers,and the Co,only bonds to the pyridyl group and terminal water molecules,then forming the two-dimensional(2D) bilayer.On the other hand,the 2D layers are further connected by hydrogen bonds interactions to give a three-dimensional(3D) supramolecular structure.In addition,the luminescent property of complex 1 has been investigated at room temperature,indicating the red photoluminescence exists in it.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2011年第11期2313-2317,共5页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.21003014)
湖南省科技计划(No.2010FJ3167)
衡阳师范学院科学基金启动项目(No.10B67)
湖南省教育厅创新平台开放基金(No.11K009)资助项目
关键词
3d-4f配合物
晶体结构
氢键
荧光性质
3d-4f complex
crystal structure
hydrogen bond
luminescent property