基于混合官能团配体一维链状Gd配位聚合物的合成、晶体结构及性质  

Synthesis,crystal structure and properties of one-dimensional chain Gd coordination polymer based on the ligand with mix-functional groups

作　　者：王欣[1] 陈雅旭 关磊[1] 王莹[1] WANG Xin;CHEN Ya-xu;GUAN Lei;WANG Ying(School of Chemistry and Materials Science,Liaoning Shihua University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001

出　　处：《化学研究与应用》2020年第6期999-1006,共8页Chemical Research and Application

基　　金：辽宁省教育厅科学研究经费项目(L2019010)。

摘　　要：以Gd(NO3)2·6H2O和5-磺酸基间苯二甲酸单钠盐为原料,通过水热反应合成得到配位聚合物[Gd(SO3-DCB)(H2O)5]n(1)(NaH2SO3-DCB=5-磺酸基间苯二甲酸单钠盐)。单晶X射线衍射结果表明,化合物1属单斜晶系,P21/n空间群。Gd离子是九配位的,呈扭曲的单冠四方反棱柱配位构型。SO3-DCB^3-配体的两个羧基螯合配位Gd离子,形成一维链状结构。化合物1的荧光发射峰在421nm,是配体中苯环结构的特征发射峰。磁性测试表明,化合物1中的Gd离子之间存在铁磁耦合作用。The coordination polymer[Gd(SO3-DCB)(H2O)5]n(1)(NaH2SO3-DCB=5-sulfonylisophthalic acid monosodium salt)was synthesized by hydrothermal reaction with Gd(NO3)2·6H2O and NaH2SO3-DCB.The result of single crystal X-ray diffraction shows that compound 1 belongs to monoclinic system and P21/n space group.Gd ion is nine-coordinated with a distorted single crown tetragonal antipyramid configuration.Two carboxylate groups of the SO3-DCB^3-ligands chelate two Gd ions to form a one-dimensional chain structure.The fluorescence emission peak of compound 1 is at 421 nm,which is the characteristic emission of benzene ring in the ligand.Magnetic measurement shows that there is the weak ferromagnetic coupling between Gd ions in compound 1.

关 键 词：配位聚合物 荧光 磁性 配体 

分 类 号：O614.7+1[理学—无机化学]