A Linear 3d-4f Tetranuclear CoIII2DyIII2 Single-Molecule Magnet: Synthesis, Structure, and Magnetic Properties

作者：Zhao, Lang; Wu, Jianfeng; Xue, Shufang; Tang, Jinkui^*

来源：Chemistry-An Asian Journal, 2012, 7(10): 2419-2423.

DOI：10.1002/asia.201200548

• cluster compounds
• lanthanides
• magnetic properties
• single-molecule magnets
• slow relaxation

A linear tetranuclear 3d4f Co2Dy2 cluster assembled from a polydentate Schiff base exhibits single-molecule magnet (SMM) behavior with an anisotropic barrier of 33.8 K. Due to the presence of diamagnetic cobalt(III) ions, the tetranuclear cluster of 1 behaves magnetically like a dinuclear Dy2 system. However, the diamagnetic segment might efficiently minimize undesirable intermolecular magnetic interactions, thereby improving the performance of the SMM behavior of 1. This discrete complex presents us with a unique opportunity to study the magnetic properties and to probe the dynamics of magnetization in a magnetically isolated Dy2 system.

• 出版日期2012-10
• 单位稀土资源利用国家重点实验室; 中国科学院; 中国科学院长春应用化学研究所