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A kind of preparation method of organic chiral ferromagnetic nanocrystal

A magnetic nano and organic iron technology, applied in nanotechnology, crystal growth, nanotechnology, etc., can solve the problems of organic chiral magnets that have not been reported, and achieve good application prospects

Active Publication Date: 2022-02-11
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently, no organic chiral magnets with chiral enantiomeric differences have been reported

Method used

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  • A kind of preparation method of organic chiral ferromagnetic nanocrystal
  • A kind of preparation method of organic chiral ferromagnetic nanocrystal
  • A kind of preparation method of organic chiral ferromagnetic nanocrystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Method for preparing the chiral organic ferromagnetic nanocrystals based on Fe-TPPS, including steps as follows:

[0032] (1) Dissolve Fe-TPPs in the methanol solvent, the concentration of the solution is 2 × 10 -6 Mol / L.

[0033] (2) Dissolve S-DAC in chloroform solvent, the concentration of this solution is 5 × 10 -7 Mol / L.

[0034] (3) Exissue R-DAC in chloroform solvent, the concentration of the solution is 5 × 10 -7 Mol / L.

[0035] (4) 0.5 ml of Fe-TPPs of methanol solution was added to 4 ml of S-DAC chloroform solution and agitated vigorously. After mixing, the ink green floc is generated, which is the right hand-in-chiral Fe-TPPS organic ferromagnetic nanocrystal.

[0036] (5) 0.5 ml of Fe-TPPS methanol solution was added to 4 ml of R-DAC chloroform solution and agitated vigorously. After mixing, the ink green floc is generated, which is the left hand-made FE-TPPS organic ferromagnetic nanocrystal.

Embodiment 2

[0038] Method for preparing the chiral organic ferromagnetic nanocrystals based on Fe-TPPS, including steps as follows:

[0039] (1) Dissolve Fe-TPPs in the methanol solvent, the concentration of the solution is 2 × 10 -6 Mol / L.

[0040] (2) dissolve the S-DAC in the chloroform solvent, the concentration of the solution is 2.5 × 10 -7 Mol / L.

[0041] (3) dissolve the R-DAC in the chloroform solvent, the concentration of the solution is 2.5 × 10 -7 Mol / L.

[0042] (4) 0.5 ml of Fe-TPPs of methanol solution was added to 4 ml of S-DAC chloroform solution and agitated vigorously. After mixing, the ink green floc is generated, which is the right hand-in-chiral Fe-TPPS organic ferromagnetic nanocrystal.

[0043] (5) 0.5 ml of Fe-TPPS methanol solution was added to 4 ml of R-DAC chloroform solution and agitated vigorously. After mixing, the ink green floc is generated, which is the left hand-made FE-TPPS organic ferromagnetic nanocrystal.

Embodiment 3

[0045] Method for preparing the chiral organic ferromagnetic nanocrystals based on Fe-TPPS, including steps as follows:

[0046] (1) Dissolve Fe-TPPs in the methanol solvent, the concentration of the solution is 2 × 10 -6 Mol / L.

[0047] (2) dissolve S-DAC in chloroform solvent, the concentration of the solution is 7.5 × 10 -7 Mol / L.

[0048] (3) Dissolve the R-DAC in the chloroform solvent, the concentration of the solution is 7.5 × 10 -7 Mol / L.

[0049] (4) 0.5 ml of Fe-TPPs of methanol solution was added to 4 ml of S-DAC chloroform solution and agitated vigorously. After mixing, the ink green floc is generated, which is the right hand-in-chiral Fe-TPPS organic ferromagnetic nanocrystal.

[0050](5) 0.5 ml of Fe-TPPS methanol solution was added to 4 ml of R-DAC chloroform solution and agitated vigorously. After mixing, the ink green floc is generated, which is the left hand-made FE-TPPS organic ferromagnetic nanocrystal.

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Abstract

The present invention relates to a kind of preparation method of organic chiral ferromagnetic nano crystal, comprising the steps as follows: mixing the methanol solution of Fe-TPPS with the chloroform solution of S-DAC or the chloroform solution of R-DAC, stirring and reacting to obtain the right-handed Fe-TPPS organic ferromagnetic nanocrystals or left-handed Fe-TPPS organic ferromagnetic nanocrystals. When the molar ratio of Fe-TPPS to chiral inducing factor DAC is 1:2, and the volume ratio of Fe-TPPS methanol solution to DAC chloroform solution is 1:8, the circular dichroism signal is the strongest and the chiral structure is the best. The organic ferromagnetic nanocrystals prepared by the method have considerable magnetic moments, and are suitable carriers for studying the magneto-optical coupling effect of organic materials.

Description

Technical field [0001] The present invention provides a method of preparing organic ferromagnetic nanocrystals, belonging to the field of crystal growth Background technique [0002] The chiral is a basic attribute existing in nature. If a substance itself cannot be complicated with its mirror, it is called the material. Compared with other materials, the chiral materials have some special optical properties such as photoelamile, circular two-color, circularly polarized luminescent or the like. These properties have broad application prospects in the fields of optical detectors, 3D imaging. On the other hand, with the development of spin electrons, spin phenomena in organic materials is gradually focusing on people, such as chiral induced spin selection effects. The effect refers to the selectivity of the transfer electron spin, and the electron-separated electron is different from the speed of the chiral material. Currently, a spin filter is prepared based on this effect. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B7/14C30B29/54B82Y30/00B82Y40/00
CPCC30B7/14C30B29/54B82Y30/00B82Y40/00
Inventor 秦伟高铭升
Owner SHANDONG UNIV
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