A Purely Lanthanide-Based Complex Exhibiting Ferromagnetic Coupling and Slow Magnetic Relaxation Behavior
A Purely Lanthanide-Based Complex Exhibiting Ferromagnetic Coupling and Slow Magnetic Relaxation Behavior
复制标题
具有铁磁耦合和慢磁弛豫行为的纯镧系配合物
DOI：
10.1021/ic801507g
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发表时间：
2009-04-20
影响因子：
4.6
通讯作者：
Song, You
中科院分区：
文献类型：
--
作者：
Chen, Zhi;Zhao, Bin;Song, You
对两种镧系有机骨架{Ln（TDA）（1.5）（H2O）（2）}（n）[TDA =噻吩-2，5-二羧酸阴离子; Ln = Gd（1），Dy（2）]进行了结构和磁性表征。磁性研究表明，1和2中相邻的镧系离子之间存在铁磁耦合，只有2表现出缓慢的磁弛豫行为，τ（0）= 2.4 × 10（-1）s，Δ E/k（B）= 44.2 K.据我们所知，这是相当罕见的铁磁耦合和慢磁弛豫共存的三维镧系元素为基础的框架。
Two lanthanide-organic frameworks, {Ln(TDA)(1.5)(H2O)(2)}(n) [TDA = thiophene-2,5-dicarboxylic acid anion; Ln = Gd (1), Dy (2)], were structurally and magnetically characterized. The magnetic studies revealed that the ferromagnetic coupling existed between adjacent lanthanide ions in 1 and 2, and only 2 displays slow magnetic relaxation behavior with tau(0) = 2.4 x 10(-1) s and Delta E/k(B) = 44.2 K. To our knowledge, it is rather rare that ferromagnetic coupling and slow magnetic relaxation coexist in three-dimensional lanthanide-based frameworks.