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Dy monomolecular magnetic material and preparation method thereof

A single-molecule magnetic and filtrate technology, applied in the direction of organic materials/organic magnetic materials, chemical instruments and methods, 3/13 group organic compounds without C-metal bonds, etc., can solve the complicated preparation method, single-molecule magnetic The problems of unstable material structure and low yield can achieve the effects of simple preparation method, novel molecular design concept and stable product

Inactive Publication Date: 2015-04-08
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of unstable structure of existing single-molecule magnetic materials, cumbersome preparation methods and low yield, and provide a Dy single-molecule magnetic material and its preparation method

Method used

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  • Dy monomolecular magnetic material and preparation method thereof
  • Dy monomolecular magnetic material and preparation method thereof
  • Dy monomolecular magnetic material and preparation method thereof

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specific Embodiment approach 1

[0022] Specific embodiment one: the present embodiment is the expression of a kind of Dy single-molecule magnetic material is [Dy (nma) (NO 3 ) 2 (DMSO)]·CH 3 OH, its structural formula is as follows:

[0023]

[0024] The advantage of this implementation mode:

[0025] 1. The Dy single-molecule magnetic material prepared in this embodiment has a stable single-nuclear structure, and the maximum inversion energy barrier of the system is 67K, which is obviously better than the maximum inversion energy barrier of the published mononuclear dysprosium-containing single-molecule magnetic system;

[0026] 2. The preparation method of this embodiment has a novel molecular design concept, simple preparation method, and stable product;

[0027] 3. The yield of the Dy single-molecule magnetic material prepared in this embodiment is 70%-72%.

[0028] In this embodiment, a Dy single-molecule magnetic material and a preparation method thereof can be obtained.

specific Embodiment approach 2

[0029] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the described [Dy(nma)(NO 3 ) 2 (DMSO)]·CH 3 DMSO in OH is dimethylsulfoxide. Others are the same as the first embodiment.

specific Embodiment approach 3

[0030] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the described [Dy(nma)(NO 3 ) 2 (DMSO)]·CH 3 In OH, nma is histamine condensed 2-formyl-8-hydroxyquinoline, and its structural formula is as follows:

[0031] Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a Dy monomolecular magnetic material and a preparation method thereof, relating to a monomolecular magnetic material and a preparation method thereof and aiming at solving the problems that the existing monomolecular magnetic material has an unstable structure and the preparation method is complicated and low in yield. The expression of the Dy monomolecular magnetic material is [Dy(nma)(NO3)2(DMSO)].CH3OH, the structural formula is as shown in the specification. The preparation method comprises the following steps: mixing dichloromethane, methanol and dimethyl sulfoxide, to obtain a mixed solvent; then adding dysprosium nitrate, histamine dihydrochloride, potassium hydroxide and 2-formyl-8-hydroxyquinoline into the mixed solvent, stirring and reacting for 12h-24h, and then filtering to obtain a filtrate; and dropwise adding ether into the filtrate, and standing to obtain the Dy monomolecular magnetic material. The yield of the prepared Dy monomolecular magnetic material is 70%-72%. The invention provides a Dy monomolecular magnetic material and a preparation method thereof.

Description

technical field [0001] The invention relates to a single-molecule magnetic material and a preparation method thereof. Background technique [0002] A single-molecule magnet is a monodisperse nanoscale magnet composed of molecules containing magnetic centers. Such molecules at the blocking temperature (T Blocking ) shows very slow magnetic relaxation, so it can be applied in the fields of quantum computers, high-density information storage, and low-temperature magnetic refrigeration technology. At the same time, the study of single-molecule magnets has also enabled us to have a deeper understanding of these nano-sized magnetic particles and related physics. [0003] The earliest research on single-molecule magnets began in 1992 with Caneschi et al. (J.Am.Chem.Soc.1991,113,5873) on Mn 12 After the report of OAc, the study of single-molecule magnets containing various transition metal ions has gradually attracted attention. The hysteresis behavior exhibited by such single-m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/00H01F1/42
CPCC07F5/003H01F1/42
Inventor 陈鹏张美琦闫鹏飞
Owner HEILONGJIANG UNIV
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