A Tetranuclear 3d−4f Single Molecule Magnet: [CuIILTbIII(hfac)2]2

Abstract
We report now the first single molecule magnet (SMM) consisting of d−f elements. The present study demonstrates that the synthesis of the d−f polynuclear molecule is a very promising approach to SMMs. (1) The d−f polynuclear molecule can be easily synthesized by the assembly reaction of the d-component and the f-component, (2) the high-spin ground state can be generated by a smaller number of metal ions than the d complex, and (3) the molecular magnetic anisotropy is easily derived from the f-component.