化学
结晶学
单分子磁体
分子
离子
镧系元素
三角棱镜分子几何学
晶体结构
磁化
八面体
物理
有机化学
量子力学
磁场
作者
Xiaoqing Zhao,Tianhao Zhao,Yiyan Wang,Jing Zhou
摘要
Two novel 3 d ‐4 f clusters with {Co II 6 Ln III 2 } (Ln = Dy (1), Ho (2)) cores are fabricated, with formulas of {[Co 6 Ln 2 (O) 2 (dhpb) 6 (NO 3 ) 2 (DMF) 2 ]·H 2 O} (H 2 dhpb = 6,6′‐dihydroxyl‐2,2′‐bipyridine, DMF = dimethyl formamide), which consist of two asymmetrical [Co 3 Ln] pyrimids bridged by a μ 4 ‐O bridge. The {Co II 6 Ln III 2 } core exhibits a bicapped anti‐trigonal‐prism configuration, and is held together by six dhpb 2− ligands. Interestingly, the Ln III ions are seven‐coordinate in pseudo‐ D 5h symmetry. The magnetic studies indicate that both compounds 1 and 2 show significant single‐molecule magnet (SMM) behaviours.
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