Abstract A series of seven isostructural homometallic dinuclear lanthanide metal complexes having the general formula [Ln2(L)2(NO3)4]·2CH3 OH, where L = 6-methoxy-2-(2-pyridylmethyliminomethyl) phenol Ln = Tb (1), Dy (2), Ho (3), Er (4), Tm (5), Yb (6), and Lu (7), are described. Compounds 1–7 were obtained from the reactions of Schiff base ligand (L) with the respective metal nitrates in the presence of triethylamine in MeOH. The structure of 2 was determined by single-crystal X-ray diffraction and the remaining compounds were characterized from X-ray powder diffraction patterns and found to be isostructural. The magnetic properties of 1–7 have been investigated using dc and ac susceptibility measurements. All these compounds show antiferromagnetic behavior between adjacent paramagnetic centers. Out of these seven compounds, only 2 displays an out-of-phase ac susceptibility signal which is attributed to the presence of the anisotropic DyIII ions. Graphical Abstract

中文翻译：

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席夫碱配体构建的双核镧系元素配合物的合成、表征和磁性研究

摘要 一系列具有通式 [Ln2(L)2(NO3)4]·2CH3 OH 的七种同构均金属双核镧系金属配合物，其中 L = 6-甲氧基-2-(2-吡啶基甲基亚氨基甲基)苯酚 Ln = Tb (1 )、Dy (2)、Ho (3)、Er (4)、Tm (5)、Yb (6) 和 Lu (7)。化合物 1-7 是由席夫碱配体 (L) 与相应的金属硝酸盐在三乙胺在甲醇中的反应中获得的。2 的结构由单晶 X 射线衍射确定，其余化合物由 X 射线粉末衍射图表征并发现是同构的。已经使用直流和交流磁化率测量研究了 1-7 的磁性。所有这些化合物在相邻的顺磁中心之间都表现出反铁磁行为。在这七种化合物中，只有 2 个显示异相交流磁化率信号，这归因于各向异性 DyIII 离子的存在。图形概要