Modulating dynamic magnetic behaviors of two Tb(III) dinuclear complexes by using two different β-diketonate coligands

Complexes 2 and 3 are all phenoxo-O bridged dinuclear complexes with similar structures, however, they have distinct magnetic behaviors. Complexe 2 shows single-molecule-magnet behavior with the anisotropic barriers (ΔE/kB) of 1.51 K, while no out of-phase alternating-current signal is noticed for 3. The distinct magnetic behaviors of 2 and 3 are mainly due to the slightly different chemical environment around the center Tb(III) ions.93