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Salen-like and diketone-base dysprosium tetranuclear cluster compound type monomolecular magnetic material and preparation method thereof

A technology of single-molecule magnetism and diketodysprosium, applied in the magnetism of organic materials/organic magnetic materials, chemical instruments and methods, compounds containing elements of group 3/13 of the periodic table, etc., can solve effective spin inversion Low energy barrier and other issues, to achieve the effect of high effective spin inversion energy barrier, easy operation, and simple method

Inactive Publication Date: 2013-03-06
HEILONGJIANG UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] The present invention solves the technical problem of low effective spin inversion energy barrier of existing dysprosium tetranuclear cluster single-molecule magnetic materials; and provides salen-like and diketone-based dysprosium tetranuclear cluster single-molecule magnetic materials and their preparation method

Method used

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  • Salen-like and diketone-base dysprosium tetranuclear cluster compound type monomolecular magnetic material and preparation method thereof
  • Salen-like and diketone-base dysprosium tetranuclear cluster compound type monomolecular magnetic material and preparation method thereof
  • Salen-like and diketone-base dysprosium tetranuclear cluster compound type monomolecular magnetic material and preparation method thereof

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specific Embodiment approach 1

[0015] Specific embodiment one: the molecular formula of the salen-like and diketo dysprosium tetranuclear cluster type monomolecular magnetic material of this embodiment is [Dy 4 (μ 3 -OH) 2 L 2 (acac) 4 ]·H 2 LCH 3 CN, is a dysprosium cluster compound with zero-dimensional, tetra-nuclear and coplanar structure, effective spin inversion energy barrier U eff Is 20.72K, the magnetization relaxation time is τ 0 4.55×10 -6 s.

specific Embodiment approach 2

[0016] Specific embodiment two: the preparation method of the monomolecular magnetic material of salen and diketo dysprosium tetranuclear cluster compound of this embodiment is carried out by the following steps: step one, at room temperature, 1,2-cyclohexanedi Amine salicylaldehyde and acetylacetone are dissolved in aprotic polar solvents. The amount of acetylacetone is three times the mass of 1,2-cyclohexanediamine salicylaldehyde and the mass of 1,2-cyclohexanediamine salicylaldehyde. The volume ratio to the aprotic polar solvent is 0.33g: 10mL, and the organic base is added. The amount of the organic base is twice the mass of cyclohexanediamine salicylaldehyde to obtain mixture A; Step 2. Adding dysprosium chloride to the protic polar In the neutral solvent, the amount of dysprosium chloride is the same as the mass of 1,2-cyclohexanediamine salicylaldehyde, and the volume ratio of the mass of dysprosium chloride to the protic polar solvent is 0.33g:10mL to obtain mixture B; ...

specific Embodiment approach 3

[0018] Specific embodiment three: This embodiment is different from the specific embodiment two in that the aprotic polar solvent in step one is acetonitrile. The other steps and parameters are the same as in the second embodiment.

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Abstract

The invention provides a salen-like and diketone-base dysprosium tetranuclear cluster compound type monomolecular magnetic material and a preparation method thereof and relate to a cluster compound and a preparation method thereof. The invention aims at solving the technical problem that the existing dysprosium tetranuclear cluster compound type monomolecular magnetic material has low effective revolving and inverting energy barrier. The molecular formula of the salen-like and diketone-base dysprosium tetranuclear cluster compound type monomolecular magnetic material is [Dy4(mu3-OH)2L2(acac)4].H2LCH3CN. The method comprises the following steps of: firstly, at a room temperature, dissolving 1,2-hexamethylene diamine salicylaldehyde and diacetone in an aprotic polar solvent, and adding organic base to obtain a mixture A; secondly, adding dysprosium chloride salt to a protonic polar solvent to obtain a mixture B; and thirdly, dripping the mixture B in the mixture A, then agitating, reacting, filtering, and settling filtrate for 14 days. The cluster compound is used in the fields of high density information storage, quantum computer and the like.

Description

Technical field [0001] The invention relates to a cluster compound and a preparation method thereof. Background technique [0002] Single-molecule magnets can be regarded as the intersection of molecular-based ferromagnets and nano-magnetic materials. It provides the first truly monodisperse nanomagnet composed of a single molecule. Because of its very slow magnetic relaxation phenomenon at low temperatures, it can be used in high-density information storage and quantum computers, and has attracted much attention. The study of single-molecule magnets also contributes to the understanding of the physics of nano-sized magnetic particles. [0003] Since Friedman et al. (J. Appl. Phys. 1996, 79, 6031) first reported single-molecule magnets containing Mn12 cluster complexes in 1996, people have begun extensive research on single-molecule magnets containing transition metals. However, there are few reports on rare earth monomolecular materials. Compared with transition metals, the hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/42C07F5/00
Inventor 孙文彬闫鹏飞田永梅李洪峰李光明
Owner HEILONGJIANG UNIV
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