钛铁试剂桥联的Fe^(Ⅲ)-Sm~Ⅲ杂核配合物的合成、结构和磁性  

Synthesis,Structure and Magnetic Properties of Tiron-bridged Fe^(Ⅲ)-Sm~Ⅲ Heteronuclear Complex

作　　者：储召华[1] 陈延民[2] 解庆范[2] 

机构地区：[1]韩山师范学院化学系,潮州521041 [2]泉州师范学院化学与生命科学学院,泉州362000

出　　处：《人工晶体学报》2012年第5期1472-1477,共6页Journal of Synthetic Crystals

基　　金：福建省教育厅基金项目(JK2011042);广东省科技厅科技项目(2011B090400521)

摘　　要：采用水热法合成了一种3d-4f杂核配合物[Fe(phen)3]2[FeSm(H2O)(tiron)3].6H2O(1,Na2H2tiron=4,5-二羟基苯-1,3-二磺酸钠),利用IR、元素分析、TGA和X射线单晶衍射分析进行了表征。该配合物属立方晶系,P213空间群,a=2.1711(3)nm,V=10.234(2)nm3,Mr=2323.82,Dc=1.508 g/cm3,F(000)=4720,Z=4,R1=0.0482,wR2=0.1345。2～300 K温度范围的变温磁化率测试结果显示,SmIII-FeIII之间存在反铁磁相互作用。A new 3d-4f heteronuclear complex [Fe（phen）3]2[FeSm（H2O）（tiron）3]·6H2O（1,Na2H2tiron=disodium 4,5-dihydroxybenzene-1,3-disulfonate） was synthesized by hydrothermal method,and structurally and magnetically characterized.The complex crystallized in cubic system,space group P213 with a=2.1711（3） nm,V=10.234（2） nm3,Mr=2323.82,Dc =1.508 g/cm3,F（000）=4720,Z=4,the final R=0.0482,wR2=0.1345 for 6360 observed reflections（I2σ（I））.In [FeSm（H2O）（tiron）3]6-unit was revealed that the Fe3＋ is in a FeO6 distorted trigonal anti-prism coordination polyhedron completed by six phenolate O atoms from three tiron4-ligands,and Sm3＋ in a SmO7 distorted monocapped trigonal anti-prism coordination polyhedron completed by three phenolate omes and three O atoms from sulfonic group of three ligands and one O atom from water.The magnetic properties of the complex were determined in the temperature range 2-300 K,indicating that the antiferromagnetic interaction between the central SmIII-FeIII ions.

关 键 词：杂核配合物 晶体结构 水热合成 磁性 

分 类 号：TB34[一般工业技术—材料科学与工程] O484[理学—固体物理]