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Mixed metal ion single-molecular magnet and preparation method thereof

A technology of mixing metal ions and single-molecule magnets, applied to magnets, magnetic objects, electrical components, etc., to achieve high yield, simple method, and easy realization

Inactive Publication Date: 2014-08-13
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Complexes with single-molecule magnet properties have not been reported so far

Method used

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  • Mixed metal ion single-molecular magnet and preparation method thereof
  • Mixed metal ion single-molecular magnet and preparation method thereof
  • Mixed metal ion single-molecular magnet and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0031] After uniformly mixing 5mL of 0.1mmol / mL dysprosium nitrate and 5mL of 0.1mmol / mL potassium ferricyanide aqueous solution, add 5mL of 0.1mmol / mL quinoline-2-carboxylic acid in DMF, stir at room temperature for 1 hour, filter, and the filtrate After standing at room temperature, yellow massive crystals precipitated after two days, and the yield was 83%. Described crystal is carried out following detection:

[0032] Elemental analysis was carried out with an elemental analyzer, and the results were as follows (experimental value / theoretical value, %): C, 28.9 / 29.2; H, 5.1 / 4.9; N, 18.7 / 18.9.

[0033] Adopt infrared spectrometer to carry out infrared spectrum analysis, the result is as follows (cm -1 ): 674(s), 1115(m), 1384(s), 1656(vs), 2120(vs), 2143(s), 2954(m), 3380(s).

[0034] Structural characterization by single crystal diffractometer:

[0035] figure 1 The crystal structure ellipsoid of the complex is given. Metal ion Dy III It is an eight-coordination confi...

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Abstract

The invention discloses a mixed metal ion single-molecular magnet and a synthesis method thereof, belonging to the field of magnetic storage materials. The chemical formula of the single-molecular magnet is D<y>(DMF)4(H2O)3Fe(CN)6.H2O, wherein DMF is N,N-dimethyl formamide. The preparation method comprises the following steps: evenly mixing dysprosium nitrate and a potassium ferricyanide solution, adding a DMF (dimethyl formamide) solution of quinoline-2-formic acid, stirring for one hour at normal temperature, filtering, standing a filtrate at the normal temperature, and separating out crystals, namely the mixed metal ion single-molecular magnet. The mixed metal ion single-molecular magnet can be applied to a novel magnetic storage material; the method is simple, easy to realize and low in cost.

Description

technical field [0001] The invention relates to a mixed metal ion single-molecule magnet and its preparation method, in particular to a single-molecule magnet containing dysprosium and iron mixed metal ions and its preparation method, specifically a dysprosium-ferricyanide compound single-molecule magnet and its preparation method. The synthesis method belongs to the field of magnetic storage materials. Background technique [0002] Single-Molecule Magnets (SMMs) are special molecular magnetic materials, which have the coexistence of classical properties and quantum effects of macroscopic magnets, so they can be used to study the relationship between quantum mechanical behavior and classical mechanical behavior on a macroscopic scale. convert. A single molecule of SMM can be regarded as an ultra-small magnet that can be used to store information. In theory, each molecule could store one bit of information. SMMs are much smaller than ordinary magnets, which means stronger ...

Claims

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Application Information

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IPC IPC(8): C07F19/00H01F7/00
Inventor 刘天府张媛魏晨燕
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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