We have prepared three 3d–4f heterometallic complexes, namely[Ln₃Zn₃(Hvanox)₃(vanox)₃(NO₃)₆(H₂O)₅]·nEtOH (Ln^III = Dy, n = 3 (1), Ln^III = Tb, n = 5 (2), Ln^III = Er, n = 5 (3)), by the reaction of o-vanillin oxime (H₂L) with Zn(NO₃)₂·6H₂O and Ln(NO₃)₂·6H₂O salts in the presence of triethylamine. Single Crystal X-ray diffraction shows Zn ions and Ln ions are linked together to display a windmill-like framework with the dinuclear LnZn(HL)(L) as flabellum. Magnetic measurements reveal that complexes 1 and 2 exhibit field-induced frequency-dependence signals, indicating single-molecule magnetism (SMM) behaviors, while complex 3 exhibits slow magnetic relaxation.

中文翻译：

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具有风车状骨架和​​场致SMM行为的三种新型杂金属ZnII–LnIII配合物

我们准备了三种3d–4f杂金属配合物，即[Ln ₃ Zn ₃（Hvanox）₃（vanox）₃（NO ₃）₆（H ₂ O）₅ ]· n EtOH（Ln ^III = Dy，n = 3（1），Ln ^III = Tb，n = 5（2），Ln ^III = Er，n = 5（3）），是通过邻香草醛肟（H ₂ L）与Zn（NO ₃）₂ ·6H _2反应O和Ln（NO₃）在三乙胺存在下的₂ ·6H ₂ O盐。单晶X射线衍射显示Zn离子和Ln离子连接在一起以显示风车状骨架，双核LnZn（HL）（L）为f。磁测量表明，配合物1和2表现出场感应的频率依赖性信号，表明单分子磁性（SMM）行为，而配合物3表现出缓慢的磁弛豫。