摘要
通过水热法成功合成一个新的含N杂环二羧酸配体和草酸根离子的稀土配合物,其结构式为{[Gd2(Hpimda)2(μ4-C2O4).2H2O].2H2O}n(H3pimda为2-(吡啶-4-基)-1H-4,5-咪唑二羧酸),并对该配合物进行了表征.结构分析表明该配合物呈现草酸根离子作为柱子的三维框架结构,H3pimda配体把Gd(Ⅲ)离子连接成二维层状结构,进一步堆积形成一维通道,其中容纳着自由水和配位水分子.磁性研究表明,一维链内相邻的两个顺磁中心Gd(Ⅲ)离子之间存在着弱的反铁磁相互作用.
A new lanthanide-organic complex incorporating both nitrogen heterocyclic dicarboxylate and oxalate coligand,namely,{[Gd2（Hpimda）2（μ4-C2O4）.2H2O].2H2O}n,（H3pimda = 2-（Pyridin-4-yl）-1H4,5-midazole-dicarboxylic acid） has been fabricated successfully and characterized systematically.The complex features 3D framework structure consisting of oxalate pillared gadolinium-Hpimda 2D layers with intersected channels,occupied by coordinated and lattice waters.Variable-temperature magnetic susceptibility measurement indicates that the possible antiferromagnetic interactions within the carboxylate-bridged 1-D chain.
出处
《洛阳师范学院学报》
2013年第8期40-43,共4页
Journal of Luoyang Normal University
关键词
钆(Ⅲ)的聚合物
草酸
磁学性质
gadolinium（Ⅲ） polymer
oxalate bridging
magnetic properties
