A [Mn(3)(III)O](7+) Single-Molecule Magnet: the Anisotropy Barrier Enhanced by Structural Distortion

Chen-I Yang , Wolfgang Wernsdorfer (1) , Kai-Hung Cheng , Motohiro Nakano , Gene-Hsiang Lee , Hui-Lien Tsai

1 NEEL - QuantECA - Circuits électroniques quantiques Alpes

A trinuclear manganese complex, [Mn(3)O(Me-salox)(3)(2,4'-bpy)(3)-(ClO(4))] center dot 0.5MeCN (1.0.5MeCN; Me-H(2)salox = 2-hydroxyphenylethanone oxime), has been synthesized and characterized structurally as a [MnIII3(mu(3)-O)](7+) core. Structural distortion by the twisting of the oxime ligand dominates ferromagnetic interactions within three Mn ions to give an S = 6 ground state as well as to enhance the anisotropy barrier U(eff) to 37.5 K.

Domaines: Physique [physics]

Chen-I Yang, Wolfgang Wernsdorfer, Kai-Hung Cheng, Motohiro Nakano, Gene-Hsiang Lee, et al.. A [Mn(3)(III)O](7+) Single-Molecule Magnet: the Anisotropy Barrier Enhanced by Structural Distortion. Inorganic Chemistry, 2008, 47 (22), pp.10184-10186. ⟨10.1021/ic8012238⟩. ⟨hal-00983055⟩