ChemInform Abstract: Heterodinuclear Lanthanoid‐Containing Polyoxometalates: Stepwise Synthesis and Single‐Molecule Magnet Behavior.

Abstract

Heterodinuclear lanthanoid cores are synthesized through stepwise incorporation of two types of lanthanoid cations into the vacant sites of lacunary [γ-SiW10O36] 8units without the use of templating cations. The compounds (III) crystallize in the monoclinic space group P21/c with Z = 4. (V) and (VII) crystallize in the monoclinic space group P2 1 /n with Z = 2. Compounds (Va-c) display single-molecule magnet behavior and their energy barriers for magnetization reversal can be manipulated by adjusting the coordination geometry of the Dy 3+ cation by varying the adjacent Ln 3+ cation in the [Dy(μ-OH)2Ln] 4+ core (Ln: Eu, Yb, Lu). -(SATO, R.; SUZUKI, K.; SUGAWA, M.; MIZUNO*, N.; Chem. -Eur.