Mononuclear-binuclear eutectic rare earth magnetic complex and preparation method thereof
A complex and magnetic technology, which is applied in the field of single and double-nuclear eutectic rare earth complexes and their preparation, can solve problems such as coordination environment sensitivity, and achieve high purity, simple and easy preparation methods, and good controllability
Active Publication Date: 2019-01-01
HANGZHOU DIANZI UNIV
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Abstract
The invention discloses mononuclear-binuclear eutectic rare earth magnetic complex and a preparation method thereof. Novel rare earth monomolecular magnetic bodies with different topological structures are synthesized which has an important meaning. A simple formula of the structure is as follows: {[Ln(thd)4][Ln2(thd)6(CH3COO)][Tmim]2}, wherein thd is 2,2,6,6-tetramethylheptanedione anion; Tmim is1,3,4,5-tetramethyl imidazolium cation; and Ln is terbium or dysprosium. According to the magnetic test, alternating-current magnetic susceptibility shows classical single-molecular magnet slow relaxation behaviours under zero fields, and the complex can be used as a molecule based magnetic material for high-density information storage equipment. Tetramethyl imidazolium salt is used for guiding balance ions into a reaction system, so that a self-assembly way between beta-diketone ligand thd and rare-earth ions is controlled; and the obtained mononuclear-binuclear eutectic rare earth magneticcomplex with a novel structure is simple in preparation method, is good in controllability and is high in purity.
Application Domain
Group 3/13 organic compounds without C-metal linkagesOrganic chemistry methods +1
Technology Topic
Zero fieldMagnetic susceptibility +14
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