Field-induced slow relaxation in a monometallic manganese(III) single-molecule magnet.
Field-induced slow relaxation in a monometallic manganese(III) single-molecule magnet.
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DOI：
10.1021/ic5024136
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发表时间：
2015-01
影响因子：
4.6
通讯作者：
G. Craig;J. Marbey;S. Hill;O. Roubeau;S. Parsons;M. Murrie
中科院分区：
文献类型：
--
作者：
G. Craig;J. Marbey;S. Hill;O. Roubeau;S. Parsons;M. Murrie
高场电子顺磁共振谱表明，Na_5[Mn(L-塔特)_2]·12H_2O(1；L-塔特=L-酒石酸盐)中的结构扭曲的Mn(III)离子具有明显的负轴向零场分裂和小的菱形各向异性(∼为D的1%)。交流磁化率测量表明，1含有孤立的Mn(III)中心，在外加直流磁场下，其磁化强度表现出缓慢的驰豫。
High-field electron paramagnetic resonance spectroscopy shows that the structurally distorted Mn(III) 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 Mn(III) centers, displays slow relaxation of its magnetization under an applied direct-current magnetic field.