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Single molecular magnet Dy2 (salen) 2 (tta) 4 (OAc) 2 and preparation method of single molecular magnet

A single-molecule magnet, c84h56dy2f12n4o16s4 technology, applied in chemical instruments and methods, inductance/transformer/magnet manufacturing, organic material/organic magnetic material magnetism, etc. It can solve the problems of complex synthesis method, etc., to achieve the effect of strong repeatability, high yield and simple synthesis method.

Inactive Publication Date: 2015-11-11
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of low synthesis yield of single-molecule magnets of rare earth complexes, complicated synthesis methods of the complexes, and incapable of batch production, etc., and provides a single-molecule magnet Dy 2 (sale) 2 (tta) 4 (OAc) 2 and its preparation method

Method used

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  • Single molecular magnet Dy2 (salen) 2 (tta) 4 (OAc) 2 and preparation method of single molecular magnet
  • Single molecular magnet Dy2 (salen) 2 (tta) 4 (OAc) 2 and preparation method of single molecular magnet
  • Single molecular magnet Dy2 (salen) 2 (tta) 4 (OAc) 2 and preparation method of single molecular magnet

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specific Embodiment approach 1

[0024] Embodiment 1: This embodiment is a single-molecule magnet Dy 2 (sale) 2 (tta) 4 (OAc) 2 The molecular formula is C 84 h 56 Dy 2 f 12 N 4o 16 S 4 , the crystal system is triclinic, the space group is P-1, and the unit cell parameters are α=95.80(3)°, β=100.18(3)°, γ=90.38(3)°, V=1967.8(7), Z=1.

[0025] The advantage of this implementation mode:

[0026] 1. In this embodiment, rare earth ions and ligands are coordinated through solution diffusion, and rare earth complexes with excellent properties are obtained after crystallization;

[0027] Two, the Dy prepared in this embodiment 2 (sale) 2 (tta) 4 (OAc) 2 It is a single-molecule magnet with high energy barrier, and the production rate of the preparation method of the present invention is high, which can reach more than 57.26%. The synthesis method of the single-molecule magnet is simple and has strong repeatability.

[0028] This embodiment can obtain a single molecular magnet Dy 2 (sale) 2 (tta) ...

specific Embodiment approach 2

[0029] Specific embodiment two: this embodiment is a single molecule magnet Dy 2 (sale) 2 (tta) 4 (OAc) 2 The preparation method is prepared according to the following steps:

[0030] 1. Dissolving ethylenediamine salicylaldehyde in dichloromethane to obtain solution A; dissolving cadmium acetate in methanol to obtain solution B; then mixing solution A and solution B to obtain mixed solution C;

[0031] The volume ratio of the amount of substance of ethylenediamine salicylaldehyde described in step 1 to methylene chloride is (0.125mol~0.13mol): 1L;

[0032] The amount of substance of cadmium acetate described in step one and the volume ratio of methanol are (0.125mol~0.13mol): 1L;

[0033] The mol ratio of ethylenediamine salicylaldehyde and cadmium acetate in the mixed solution C described in step 1 is 1:1;

[0034] 2. Heat the mixed solution C obtained in step 1 to reflux at a temperature of 70°C to 80°C for 1h to 1.5h, then cool to room temperature, and then filter to ...

specific Embodiment approach 3

[0043] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the volume ratio of the amount of ethylenediamine salicylaldehyde described in step 1 to methylene chloride is 0.125mol:1L. Others are the same as in the second embodiment.

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Abstract

The invention relates to a single molecular magnet and a preparation method of the single molecular magnet, namely to a single molecular magnet Dy2 (salen) 2 (tta) 4 (OAc) 2 and the preparation method of the single molecular magnet. The invention aims to solve the problems that the synthetic yield of rare earth complex single molecular magnet is relatively low, the synthetic method of the complex is complex, the batch production cannot be carried out and the like, which are faced at present. The molecular formula of the single molecular magnet Dy2 (salen) 2 (tta) 4 (OAc) 2 is C84H56Dy2F12N4O16S4, and the crystal system is a triclinic system. The preparation method comprises the following steps: Carrying out heating reflux on a mixed solution C, then cooling to the room temperature, and filtering to obtain a solution D; dispersing a mixed solution E into the solution D in a solution dispersal mode, and standing to obtain the single molecular magnet Dy2 (salen) 2 (tta) 4 (OAc) 2. The method is used for obtaining the single molecular magnet Dy2 (salen) 2 (tta) 4 (OAc) 2.

Description

technical field [0001] The invention relates to a single-molecule magnet and a preparation method thereof. Background technique [0002] Single-molecular magnets (Single-Molecular Magnets, SMMs) are new materials between molecular-based magnets and nanomagnetic materials. The curve of the intensity of the external magnetic field will appear a hysteresis loop. In 1993, GatteschiD et al. discovered the first single-molecule magnet [Mn 12 o 12 (OCMe) 16 (H 2 O) 4 ], thus opening up a new field of magnetism. Rare earth ions with a large number of single electrons and strong spin-orbit coupling (especially Tb 3+ and Dy 3+ ) is an important way to prepare high-energy-barrier single-molecule magnets. The preparation of single-molecule magnets can be prepared from relatively simple reagents by solution method and is easy to purify. It has good solubility and can be dissolved in commonly used organic reagents, which just meets the requirements of future applications, such as...

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 高婷陈若晞闫鹏飞李光明
Owner HEILONGJIANG UNIV
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