A cyano-based octanuclear {FeIII 4NiII 4} single-molecule magnet
Résumé
A new low symmetry octanuclear cyano-based {FeIII 4NiII4} single-molecule magnet (SMM) is described. This SMM exhibits the highest energy barrier (D/kB E 33 K) for magnetization reversal seen for any first-row cyanide-based complex. The importance of anisotropy axes alignment and their impact on SMM properties are illustrated when cubic {FeIII 4NiII4} boxes are compared to octanuclear complexes of lower overall symmetry.