Field-induced slow relaxation in a monometallic manganese(III) single-molecule magnet

Craig, Gavin A. and Marbey, Jonathan J. and Hill, Stephen and Roubeau, Olivier and Parsons, Simon and Murrie, Mark (2015) Field-induced slow relaxation in a monometallic manganese(III) single-molecule magnet. Inorganic Chemistry, 54 (1). pp. 13-15. ISSN 0020-1669 (https://doi.org/10.1021/ic5024136)

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Abstract

High-field electron paramagnetic resonance spectroscopy shows that the structurally distorted MnIII ion in Na5[Mn(l-tart)2]·12H2O (1; l-tart = l-tartrate) has a significant negative axial zero-field splitting and a small rhombic anisotropy (∼1% of D). Alternating-current magnetic susceptibility measurements demonstrate that 1, which contains isolated MnIII centers, displays slow relaxation of its magnetization under an applied direct-current magnetic field.