Tetranuclear [MDy]2 Compounds and Their Dinuclear [MDy] (M = Zn/Cu) Building Units: Their Assembly, Structures, and Magnetic Properties

• DOI: 10.1021/ic400620j
• Publication Date: 2013-05-16T16:31:08Z
• Authors: Peng Zhang; Li Zhang; Shuang-Yan Lin; Jinkui Tang
• Keywords: 01 natural sciences; 0104 chemical sciences

The reactions between a salen ligand N,N'-bis(3-methoxysalicylidene)-1,2-cyclohexanediamine (H2L) and different metal salts lead to the formation of four 3d-4f [MDy] [MDy]2 (M = Zn/Cu) compounds, where can be considered as resulting from assembly two building blocks. Field-induced single molecule magnet (SMM) behavior was observed in [ZnDy] [CuDy] compounds with effective suppression fast quantum tunneling under dc field. Moreover, [ZnDy]2 compound demonstrates typical SMM behavior, which may originate high axial anisotropy Dy ions correlating change coordination geometry enhanced ferromagnetic interactions via coupling [DyZn] units. result suggests positive effects blocking units enhance their presenting promising strategy for constructing efficient heterometallic SMMs.