| 席夫碱类三明治型铽/镝金属配合物的合成、表征及磁性 | |
| Sandwich-Type Tb and Dy Complexes with Schiff-Base Ligand: Syntheses, Crystal Structures and Magnetic Properties | |
| 摘要: 以N，N'-二（4-甲氧基水杨基）邻苯二胺（H2L）为配体合成了2个新的稀土配合物[M2L3（H2O）]（M=Tb（1），Dy（2）），并对它们进行了红外分析、元素分析和单晶结构分析。单晶衍射结果表明，配合物1和2均为三明治型双核配合物。此外还研究了配合物1和2的磁学性质，结果表明配合物1和2都表现出反铁磁性作用和场诱导效应引起的慢弛豫行为。配合物2的有效能垒和驰豫时间分别为35.45 cm-1和2.7×10-10 s。 | |
| 关键词: 铽(III)和镝(III)配合物 席夫碱 晶体结构 磁学性质 | |
| 基金项目: 河南省科技攻关项目（No.182102210200）和安阳工学院校基金项目（No.YJJ2016014）资助。 | |
| Abstract: Two new sandwich-type di-lanthanide complexes[M2L3(H2O)] (M=Tb (1), Dy (2), H2L=N,N'-bis(4-methyloxysalicylidene)benzene-1,2-diamine) were synthesized by treating the Schiff-base ligand with M(acac)3·6H2O (M=Tb, Dy) and characterized by elemental analysis, IR spectra and X-ray single crystal diffraction. X-ray single crystal diffraction analysis reveals that 1 and 2 have a similar new triple-deck dinuclear sandwich structure. The magnetic measurements of complexes 1 and 2 indicated that 1 and 2 exhibit the antiferromagnetic interactions between lanthanide ions, and field-induced slow magnetic relaxation. The deduced effective energy barrier (Ueff) and relaxation time (τ0) are 35.45 cm-1 and 2.7×10-10 s for 2. | |
| Keywords: Tb(III) and Dy(III) complexes Schiff base crystal structures magnetic properties | |
| 投稿时间：2018-05-15 修订日期：2018-07-14 | |
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| 杨立国,王芳,郁有祝,王鑫,张永辉,杨华,王大奇,李大成.席夫碱类三明治型铽/镝金属配合物的合成、表征及磁性[J].无机化学学报,2018,34(10):1891-1898. | |
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