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Two chain-based TbIII/DyIII complexes derived from m-nitrobenzoic acid with totally different structures and magnetic properties
被引:33
|作者:
Zheng, Teng-Fei
Tian, Xue-Mei
Yao, Shu-Li
Cao, Chen
Cai, Jin-Bao
[1
]
Liu, Sui-Jun
[1
]
机构:
[1] Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Jiangxi, Peoples R China
基金:
中国博士后科学基金;
中国国家自然科学基金;
关键词:
Ln(III) complexes;
One-dimensional structures;
Monocarboxylate ligands;
Slow magnetic relaxation;
SINGLE-MOLECULE MAGNET;
LANTHANIDE COMPLEXES;
RELAXATION;
ANISOTROPY;
FRAMEWORKS;
COMPOUND;
BEHAVIOR;
LIGAND;
SERIES;
D O I:
10.1016/j.molstruc.2018.03.112
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Two Ln(III) complexes derived from one aromatic monocarboxylate ligand, namely [Tb-2(mnba)(6)(H2O)(4)](n) (1) and [Dy-2(mnba)(4)(mu(3)-OH)(2)(H2O)](n) (2) (Hmnba = m-nitrobenzoic acid), have been prepared by similar synthetic procedures and structurally characterized. Complex 1 contains two identical one-dimensional (1D) chains with the syn,syn-carboxylate as linkers, while complex 2 takes the 1D chain structure with mu(3)- -OH and carboxylate as bridge. Magnetic studies indicate that ferromagnetic interactions between intra-chain metal centers exist in 1 and 2 and only complex 2 exhibits field-induced slow magnetic relaxation behavior. (C) 2018 Elsevier B.V. All rights reserved.
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页码:326 / 331
页数:6
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