一例酰腙席夫碱双核铽配合物的合成、晶体结构及磁性研究  

Construction,structure and magnetic properties of an acylhydrazone-schiff base binuclear terbium compound

作　　者：杜继远 姬儒雪 李壮 孙琳 李杰[1] DU Jiyuan;JI Ruxue;Li Zhuang;SUN Lin;LI Jie(College of Chemistry and Chemical Engineering,Henan University,Kaifeng 475004,Henan,China)

机构地区：[1]河南大学化学化工学院,河南开封475004

出　　处：《化学研究》2022年第2期119-124,共6页Chemical Research

基　　金：河南省科技攻关项目(212102210609);河南省教育厅项目(20A150010)。

摘　　要：以N^(3)-(2-吡啶基)-3-吡啶甲酰腙(HL)为配体,采用溶液合成法,制备出一例双核铽配合物,其化学式为[Tb_(2)(L)_(2)(CH_(3)COO)_(4)(H_(2)O)_(2)](1)。对化合物1进行了单晶X射线衍射测试,结果表明化合物1具有中心对称双核结构,其中两个乙酸根连接两个Tb^(III)。对Tb^(III)的构型计算,结果显示每个九配位的Tb^(III)离子呈现单帽四方反棱柱构型。此外,对化合物1分别进行了直流场和交流场磁化率测试,结果表明化合物1存在场诱导的单分子磁体行为。A binuclear terbium compound[Tb_(2)(L)_(2)(CH_(3)COO)_(4)(H_(2)O)_(2)](1)has been successfully synthesized by the solution method on the basis of ligands N^(3)-(2-pyridyl)-3-pyridinecarboxylhydrazone(HL).The single crystal X-ray diffraction shows that compound 1 exhibits a centrosymmetric binuclear structure,two Tb^(III) ions bridged by two acetic acid groups.The configuration calculation results for Tb^(III) ions in 1 reveal that each nine-coordinated Tb^(III) ion presents a spherical capped square antiprism configuration.In addition,direct-current and alternate-current magnetic susceptibility measurements show that 1 shows field-induced single-molecule magnet behavior.

关 键 词：双核铽配合物 构型计算 单分子磁体 

分 类 号：O614[理学—无机化学]