Heterodinuclear Cu−Tb Single-Molecule Magnet

A strictly heterodinuclear Cu−Tb complex [LCu(O₂COMe)Tb(thd)₂] made with a Schiff base L, thd, and monomethylcarbonate ligands [L^2- = N,N‘-2,2-dimethylpropylenedi(3-methoxysalicylideneiminato); thd = tetramethylheptanedionato] behaves like a single-molecule magnet. The monomethylcarbonate ligand, which appears during the reaction pathway, bridges the Cu and Tb ions.