二维层状谷氨酸-Gd配合物的合成、结构及磁性研究  

Synthesis,Structure and Magnetic Property of 2D Layer L-Glutamic Acid-Gadolinium Complex

作　　者：陈小玲 由立新 熊刚 孙亚光 CHEN Xiao-ling;YOU Li-xin;XIONG Gang(Shenyang University of Chemical Technology,Shenyan 110142,China)

机构地区：[1]沈阳化工大学应用化学学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2018年第1期9-14,共6页Journal of Shenyang University of Chemical Technology

基　　金：国家自然科学基金(21671139;21501122)

摘　　要：以柔性多齿L-谷氨酸为配体,合成配合物{[Gd_4(L-HGlu)_4(H_2O)_(16)](ClO_4)_8·5H_2O}_n(L-HGlu为L-谷氨酸负一价离子).通过元素分析、红外、X-射线单晶衍射和X-射线粉末衍射对配合物的晶体结构进行表征.X-单晶衍射分析表明配合物是以谷氨酸配体连接双核Gd单元构筑的二维阳离子层状结构的稀土配位聚合物,高氯酸根和水分子填充在二维层间.变温磁化率测试发现配合物中Gd-Gd之间存在弱的反铁磁相互作用.Based on the flexible multidentate L-glutamic acid as ligand,complex{[Gd 4(L-HGlu)4(H 2O)16](ClO 4)8·5H 2O}n(L-HGlu=L-glutamate anion)was synthesized.The crystal structure of the complex was characterized by using elemental analysis,IR,X-ray single crystal diffraction and powder X-ray diffraction(PXRD).The X-ray diffraction analysis showed that the complex is two-dimensional layered lanthanide coordination polymer constructed by binuclear Gd units and glutamic acid,perchlorate anions and free water molecules are filled in the two-dimensional layers.Variable temperature magnetic susceptibility showed that the existence of weak antiferromagnetic interactions between Gd-Gd in complex.

关 键 词：谷氨酸 晶体结构 稀土配位聚合物 

分 类 号：O614.121[理学—无机化学]