Preparation method of single-molecule magnetic body

A single-molecule magnet and preform technology, applied in the manufacture of inductors/transformers/magnets, electrical components, circuits, etc., can solve the problems of low yield and complex synthesis methods of complexes, and achieve high yield, strong repeatability, The effect of a simple synthesis method

Inactive Publication Date: 2013-07-24
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problem that the yield of the current synthesis method is low an

Method used

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  • Preparation method of single-molecule magnetic body
  • Preparation method of single-molecule magnetic body
  • Preparation method of single-molecule magnetic body

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specific Embodiment approach 1

[0018] Specific Embodiment 1: In this embodiment, a method for preparing a single-molecule magnet is specifically prepared according to the following steps:

[0019] 1. Mix ethylenediamine salicylaldehyde and dysprosium trifluoromethanesulfonate evenly, and then add methanol and triethylamine in acetonitrile solution, in which ethylenediamine salicylaldehyde, dysprosium trifluoromethanesulfonate and triethylamine The ratio of the amount of substance is 1: 1: 2, and the volume ratio of methanol and acetonitrile is 1: 1 to obtain a mixed solution;

[0020] 2. Put the mixed solution obtained in step 1 into a hydrothermal synthesis kettle, and then keep the hydrothermal synthesis kettle under constant temperature and constant pressure conditions for 48h to 49h, and control the temperature at 88°C to 92°C to obtain a preform;

[0021] 3. Naturally cool the preform obtained in step 2 to room temperature, and then keep it for 24h-48h. The solvent in the preform is completely volatili...

specific Embodiment approach 2

[0023] Embodiment 2: This embodiment differs from Embodiment 1 in that: in step 1, the concentration of the acetonitrile solution of triethylamine is 0.1 mol / L. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0024] Embodiment 3: This embodiment is different from Embodiment 1 in that: in step 2, the temperature is controlled at 90°C. Others are the same as in the first embodiment.

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Abstract

The invention discloses a preparation method of a single-molecule magnetic body. The preparation method aims at solving the problem that an existing synthetic method is low in productivity, and a synthetic method of coordination compounds is complex. The preparation method comprises the following steps of preparing mixed solution; preparing a prefabricated body; and synthesizing. The preparation method is high in productivity, simple in synthetic method of the single-molecule magnetic body, strong in repeatability and capable of being used for preparing the single-molecule magnetic body.

Description

technical field [0001] The invention relates to a preparation method of a single-molecule magnet. Background technique [0002] In recent years, the study of molecular magnets has been widely valued by people. Single-molecule magnets are composed of discrete molecular units that have no interaction in the magnetic sense rather than three-dimensional extended lattices (such as metals, metal oxides). Blocking temperature (blocking temperature, T B ) shows hysteresis behavior below, so it shows broad application prospects in the fields of ultra-dense storage and quantum computing. In 1967, Wickman et al. published an article about the molecular-based magnets of iron complexes, which exhibited ferromagnetic order in the crystalline state at 2.46K (Phys.Rev; 1967, 155:563-575 & J.Phys.Chem . Solids; 1977, 38:1341-1344). In 1993, Gatteschi D et al. discovered the first single-molecule magnet Mn 12 Clusters have opened up a new field of magnetism (Sessoli R et al., Nature, 1993...

Claims

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Application Information

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IPC IPC(8): H01F41/02C07F19/00
Inventor 高婷杨宇闫鹏飞李光明朱婧
Owner HEILONGJIANG UNIV
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