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Hexa-coordinate chiral dysprosium single-ion magnet with electromagnetic coupling effect and synthesis method thereof

An electromagnetic coupling effect and six-coordination technology, which is applied to the magnetism of organic materials/organic magnetic materials, chemical instruments and methods, organic chemistry, etc., can solve problems such as electromagnetic coupling effects that have not been studied, and improve information storage density and performance. Enhanced, performance-improved effects

Active Publication Date: 2018-01-09
NANKAI UNIV
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  • Claims
  • Application Information

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Problems solved by technology

Previously, our research group has reported a dysprosium single-molecule magnet with both ferromagnetic and ferroelectric functions (patent number: ZL 201110026019.X, patent name: a dysprosium single-molecule magnet with both ferromagnetic and ferroelectric functions and its preparation method), but did not study its electromagnetic coupling effect

Method used

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  • Hexa-coordinate chiral dysprosium single-ion magnet with electromagnetic coupling effect and synthesis method thereof
  • Hexa-coordinate chiral dysprosium single-ion magnet with electromagnetic coupling effect and synthesis method thereof
  • Hexa-coordinate chiral dysprosium single-ion magnet with electromagnetic coupling effect and synthesis method thereof

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Embodiment 1

[0020] Dissolve 296.4mg of tricyclohexylphosphorus oxide and 188.5mg of DyCl 3 ·6H 2 Add the O mixture to the beaker, then add 15 mL of ethanol and 5 mL of water, and stir for 4 h at room temperature. Then, the mixed solution is allowed to stand at room temperature for 3 days to obtain colorless cuboid crystals. Wash the obtained crystals with ice ethanol to purify the obtained product. The calculated yield based on metal Dy was 52%.

[0021] Characterization of the six-coordinate chiral dysprosium single-ion magnet:

[0022] 1) Structure determination:

[0023] The crystal structure was determined by Supernova X-ray single crystal diffractometer, and Mo-K which was monochromated by graphite was used. α Rays Is the incident radiation source to The diffraction points are collected by scanning method, and the unit cell parameters are obtained by the least square method. The crystal structure is solved by the SHELXL-97 direct method from the difference Fourier electron density map, ...

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Abstract

The invention relates to a hexa-coordinate chiral dysprosium single-ion magnet with an electromagnetic coupling effect, the chemical formula of which is represented by [Dy(Cl)3(L)2C2H5OH].C2H5OH, wherein L is tricyclohexylphosphine oxide, and the central ion of the chiral dysprosium single-ion magnet is located in a hexa-coordinate octahedral coordination environment. With dysprosium chloride hexahydrate as metal salt, L as tricyclohexylphosphine oxide and ethanol and water as mixed solvent, the hexa-coordinate chiral dysprosium single-ion magnet is prepared by stirring, separation and solid washing. The advantages of the hexa-coordinate chiral dysprosium single-ion magnet are as follows: the chiral single-ion magnet with the electromagnetic coupling effect is prepared by the simple chemical synthesis process for the first time, and the single-ion magnet can show a slow magnetic relaxation behavior and an electromagnetic coupling behavior at the same time. Such a material with the electromagnetic coupling effect can greatly increase nonvolatile information storage density, helps to enhance and improve the performance of non-silicon-based electronic devices, and is expected to promote the progress of research on multiferroic materials.

Description

【Technical Field】 [0001] The invention belongs to the technical field of functional material preparation, and relates to a six-coordinate chiral dysprosium single-ion magnet with electromagnetic coupling effect and a preparation method thereof. 【Background technique】 [0002] Due to the special magnetic properties of 4f electrons in rare earth ions, the construction of monomolecular magnets with lanthanide metal ions is one of the current important directions of molecular magnetism. Among them, a single-molecule magnet containing only one paramagnetic metal ion is also called a single-ion magnet. Although the spontaneously polarized electrical polarization (P) and magnetic polarization (M) in multiferroic materials may respond to different weak electric and weak magnetic fields, respectively, they can produce strong electromagnetic effects when MP is coupled, so they have important electromagnetic effects. The significance of theoretical research. [0003] Multiferroic materials ...

Claims

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Application Information

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IPC IPC(8): C07F9/53H01F1/42
Inventor 程鹏王玉霞师唯
Owner NANKAI UNIV
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