State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, P.R. China.
Chem Asian J. 2012 Oct;7(10):2419-23. doi: 10.1002/asia.201200548. Epub 2012 Aug 13.
A linear tetranuclear 3d-4f Co(2) Dy(2) 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 Dy(2) 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 Dy(2) system.
一个由多齿席夫碱组装的线性四核 3d-4f Co(Dy) 簇表现出单分子磁体 (SMM) 行为，各向异性势垒为 33.8 K。由于顺磁钴(III)离子的存在，1 的四核簇在磁性上表现为双核 Dy(2)体系。然而，顺磁片段可能有效地最小化了不理想的分子间磁相互作用，从而提高了 1 的 SMM 性能。这个离散的配合物为我们提供了一个独特的机会来研究磁性质，并探测在磁性隔离 Dy(2)体系中磁化的动力学。
