Single-Molecule Magnetism in Dy2 Cluster Based on a Schiff Base Ligand |
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| Authors: | Yingying Wang Zhuangdong Yuan Yunjie Guo Xuxiao Ma Zitong Meng Jingquan Sha Haifeng Zhang |
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| Affiliation: | Department of Chemistry and Chemical Engineering, Key Laboratory of Inorganic Chemistry in Universities of Shandong, Jining University, 273155 Qufu, P. R. China |
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| Abstract: | Two dinuclear LnIII-based clusters, namely [Dy2L2(NO3)2(DME)4] ( 1 ) and [Gd2L2(NO3)2(DME)4] ( 2 ) [H2L = (E)-2-((2-hydroxybenzylidene)amino)phenol] were obtained under hydrothermal condition. Two LnIII ions are bridged by two phenolic hydroxyl oxygen atoms, and the distances of them are 3.829 Å (Dy1–Dy1A) and 3.860 Å (Gd1–Gd1A). Two Dy1–O–Dy1A and Gd1–O–Gd1A angles are 109.4° and 109.8°, respectively. Magnetic studies reveal a weak antiferromagnetic interaction between Gd ions in complex 2 , and single-molecule magnet behavior for 1 with Ueff = 49.9 K and τ0 = 1.54 × 10–6 s. |
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| Keywords: | Single molecule magnet Schiff-base ligand Lanthanides Dinuclear clusters Energy barriers |
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