A tetranuclear holmium compound exhibiting single molecule magnet behavior

作者：Kuang Wei Wei; Zhu Li Li; Xu Yun; Yang Pei Pei^*

来源：Inorganic Chemistry Communications, 2015, 61: 169-172.

DOI：10.1016/j.inoche.2015.09.007

• Tetranuclear holmium cluster
• Schiff base
• Magnetic properties
• Single molecular magnet

The synthesis, structure, and magnetic properties of a new tetranuclear holmium cluster [Ho-4(III)(mu(3)-OH)(2)(L)(4)(piv)(2)(DMF)(2)]center dot 2DMF (1) is reported, where the Schiff base H2L ligand is 2-hydroxy-3-methoxyphenylsalicylaldimine and piv is pivalate. The cluster has a planar "butterfly" Ho-4 core, which is bridged by two mu(3)-hydroxide and six phenoxide oxygen atoms. Magnetically, compound 1 displays field-induced slow relaxation of magnetization. Fitting the dynamic magnetic data to the Arrhenius law gives energy barrier Delta E/k(B) = 21.49 K and tau(0) = 6.97 x 10(-7) s.

• 出版日期2015-11
• 单位淮北师范大学