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Method for preparing single-molecular magnet [Dy2(saph)2(NO3)2(CH3OH)4]

A technology of single-molecule magnets and solutions, which is applied in the fields of compounds containing elements of group 3/13 of the periodic table, chemical instruments and methods, manufacturing of inductors/transformers/magnets, etc., and can solve problems such as low yield and complex synthesis methods, etc. problem, to achieve the effect of high yield, strong reproducibility and simple synthesis method

Inactive Publication Date: 2015-04-29
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a single-molecule magnet [Dy 2 (saph) 2 (NO 3 ) 2 (CH 3 Oh) 4 ] preparation method

Method used

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  • Method for preparing single-molecular magnet [Dy2(saph)2(NO3)2(CH3OH)4]
  • Method for preparing single-molecular magnet [Dy2(saph)2(NO3)2(CH3OH)4]
  • Method for preparing single-molecular magnet [Dy2(saph)2(NO3)2(CH3OH)4]

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specific Embodiment approach 1

[0015] Specific implementation mode 1: The single-molecule magnet of this implementation mode [Dy 2 (saph) 2 (NO 3 ) 2 (CH 3 Oh) 4 ] is prepared as follows:

[0016] 1. Dissolve o-aminophenol salicylaldehyde in acetonitrile to obtain solution A; dissolve dysprosium nitrate in methanol to obtain solution B; then mix solution A and solution B, and then add triethyl ether with a concentration of 0.001mol / L Amine solution to obtain a mixed solution; wherein the ratio of the amount of o-aminophenol glycalaldehyde, dysprosium nitrate and triethylamine is 1:1:1, and the volume ratio of acetonitrile and methanol is 1:3; in solution A, o-amino The ratio of phenol salicylaldehyde to acetonitrile is (0.0211~0.0214) g: 1mL, and the ratio of dysprosium nitrate to methanol in solution B is (0.0456~0.0458) g: 3mL;

[0017] 2. Stir the mixed solution obtained in step 1 at room temperature for 20-40 minutes to obtain a preform;

[0018] 3. Volatilize the solvent in the preform obtained in...

specific Embodiment approach 2

[0021] Embodiment 2: This embodiment differs from Embodiment 1 in that the concentration of o-aminophenol salicylaldehyde in solution A described in step 1 is 0.1 mmol / L. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0022] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the concentration of dysprosium nitrate in solution B described in step 1 is 0.03 mmol / L. Others are the same as those in the first or second embodiment.

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Abstract

The invention discloses a method for preparing a single-molecular magnet [Dy2(saph)2(NO3)2(CH3OH)4] and relates to a method for preparing a single-molecular magnet. The invention aims at solving the problems that the synthetic method of the conventional rare earth complex single-molecular magnet is low in yield and the synthetic method of the complex is complicated. The method comprises the following steps: dissolving o-aminophenol salicylaldehyde in acetonitrile, thereby obtaining a solution A; dissolving dysprosium nitrate in methanol, thereby obtaining a solution B; mixing the solution A and the solution B, adding a triethylamine solution into the mixed solution, stirring under room temperature condition, thereby obtaining a preform; and volatilizing a solvent out of the preform, thereby obtaining the complex. The [Dy2(saph)2(NO3)2(CH3OH)4] prepared by the method disclosed by the invention is a single-molecular magnet with good ferromagnetic properties, the yield of the preparation method disclosed by the invention is high and is over 52.84 percent, and the synthetic method of the single-molecular magnet is simple and high in repeatability. The invention belongs to the field of preparation of single-molecular magnets.

Description

technical field [0001] The invention relates to a preparation method of a single-molecule magnet. Background technique [0002] Single-molecular magnets (Single-Molecular Magnets, SMMs) are new materials between molecular-based magnets and nanomagnetic materials; they refer to those single molecules that can be magnetized under a magnetic field and can still maintain magnetism when the magnetic field is removed. Hysteresis loops appear on the curve of the magnetization against the external magnetic field. In 1993, Gatteschi D et al. discovered the first single-molecule magnet [Mn 12 o 12 (OCMe) 16 (H 2 O) 4 ] clusters, opening up a new field of magnetism. Single-molecule magnets can be prepared by solution methods from relatively simple reagents and can be easily purified. It has good solubility and can be dissolved in commonly used organic reagents, which just caters to the requirements of future applications, such as applications on thin films. However, the tempera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/00H01F1/42H01F41/02
CPCC07F5/003H01F1/42H01F41/02
Inventor 高婷孙鸥孙文彬闫鹏飞李光明
Owner HEILONGJIANG UNIV
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