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A New Planar Hexanuclear Dysprosium Cluster Exhibiting Slow Magnetic Relaxation Features
Author(s) -
Wang YuFang,
Wang WenMin,
Sun HaoFei,
Wang WanTing,
Wang MeiYing,
Tang YuTing,
Wu ZhiLei
Publication year - 2019
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201900170
Subject(s) - dysprosium , single molecule magnet , magnetic relaxation , cluster (spacecraft) , crystallography , chemistry , lanthanide , planar , relaxation (psychology) , ligand (biochemistry) , acetic acid , molecule , schiff base , materials science , magnetic field , inorganic chemistry , ion , magnetization , physics , social psychology , psychology , computer graphics (images) , receptor , organic chemistry , biochemistry , quantum mechanics , computer science , programming language
Reaction of the Schiff base ligand H 2 L and dysprosium acetate result in a new planar Dy 6 cluster [Dy 6 (μ 3 ‐OH)L 6 (Ac) 6 ] · MeOH ( 1 ) [H 2 L = N'‐(2‐hydroxybenzylidene)‐2‐(hydroxyimino)propanohydrazide, HAc = acetic acid], which was successfully structurally and magnetically characterized. Single‐crystal X‐ray diffraction analysis revealed that 1 contained a hexanuclear dysprosium cluster [Dy 6 ], which is composed of four Dy 3 triangular units. Magnetic measurements suggest that 1 displays single‐molecule magnet (SMM) behavior which is enhanced by applying a 4000 Oe direct‐current field. The effective anisotropic barrier U eff / k B = 14.9 K and the pre‐exponential factor τ 0 = 1.31 × 10 –6 s are also obtained. This work may provide more insights for the design and investigation of lanthanide‐based SMMs.