Sandwich-Type Tb and Dy Complexes with Schiff-Base Ligand: Syntheses, Crystal Structures and Magnetic Properties

被引：0
作者：
Yang Li-Guo [1 ]
Wang Fang [1 ]
Yu You-Zhu [1 ]
Wang Xin [1 ]
Zhang Yong-Hui [1 ]
Yang Hua [2 ]
Wang Da-Qi [2 ]
Li Da-Cheng [2 ]
机构：
[1] Anyang Inst Technol, Coll Chem & Environm Engn, Anyang 455000, Henan, Peoples R China
[2] Liaocheng Univ, Sch Chem & Chem Engn, Liaocheng 252000, Shandong, Peoples R China
来源：
CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2018年 / 34卷 / 10期
关键词：
Tb(III) and Dy(III) complexes; Schiff base; crystal structures; magnetic properties; SINGLE-MOLECULE-MAGNET; HIGH-SPIN MOLECULES; SALEN-TYPE; BEHAVIOR; METAL; ACID; LUMINESCENCE; EXCHANGE; DIMER;
D O I：
10.11862/CJIC.2018.235
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
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)center dot 6H(2)O (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 (U-eff) and relaxation time (tau(0)) are 35.45 cm(-1) and 2.7x10(-10 )s for 2. CCDC: 1818315 1; 1818316, 2.
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页码：1891 / 1898
页数：8
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