Magnetic Poles Determinations and Robustness of Memory Effect upon Solubilization in a Dy^III-Based Single Ion Magnet

The [Dy­(tta)3(L)] complex behaves as a single ion magnet both in its crystalline phase and in solution. Experimental and theoretical magnetic anisotropy axes perfectly match and lie along the most electro-negative atoms of the coordination sphere. Both VSM and MCD measurements highlight the robustness of the complex, with persistence of the memory effect even in solution up to 4 K.