NDLI: Probing the magnetic relaxation and magnetic moment arrangement in a series of Dy<sub>4</sub> squares

Content Provider	Royal Society of Chemistry (RSC)
Author	Li, Xiao-Lei Lin, Shuang-Yan Zhang, Li Tang, Jinkui Wu, Jianfeng Shen, Si Zhao, Lang
Copyright Year	2017
Abstract	Three μ4-O bridged Dy4 squares, {[Dy4(μ4-O)(HL1)4(H2O)4]2(NO3)3(OH)}·2H2O·2CH3OH (1), [Dy4(μ4-O)(HL2)4(SCN)2]·2H2O·4CH3OH (2) and [Dy4(μ4-O)(H2L3)2(SCN)2]·6H2O (3) were assembled by using a Schiff base ligand and its dimerized and reduced congener, respectively. These complexes share a similar μ4-O bridged Dy4 core, while, both the coordination geometry and metal–ligand interactions are slightly changed upon the modulation of the ligands, resulting in distinct single-molecular magnetic (SMM) and single-molecular toroic (SMT) properties. In complex 1, the Schiff base ligands are in an antiparallel fashion and all DyIII ions are in a similar coordination geometry, realizing the toroidal arrangement of magnetic moments. For complex 2, the reduced ligand H3L2 in a parallel fashion results in double relaxation processes and a 9-fold increase of the Ueff. Interestingly, with the use of the dimerized ligand H6L3, we obtained complex 3, which is similar to complex 2, while due to the slight changes of the coordination environment both the single molecular magnetic property and toroidal magnetic moments almost disappeared.
Starting Page	1577
Ending Page	1584
Page Count	8
File Format	HTM / HTML PDF
ISSN	14779226
Volume Number	46
Issue Number	5
Journal	Dalton Transactions
DOI	10.1039/c6dt04456e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Schiff Hamble River H.L.1 Seaplane Water of crystallization Schiff base Ligand Biological specificity Molecular geometry
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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