Six-coordinate chiral dysprosium single-ion magnet with electromagnetic coupling effect and its synthesis method

An electromagnetic coupling effect, six-coordination technology, applied in the fields of organic material/organic magnetic material magnetism, chemical instruments and methods, organic chemistry, etc. The effect of enhancing and advancing research progress

Active Publication Date: 2019-03-26
NANKAI UNIV
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  • Description
  • 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

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  • Six-coordinate chiral dysprosium single-ion magnet with electromagnetic coupling effect and its synthesis method
  • Six-coordinate chiral dysprosium single-ion magnet with electromagnetic coupling effect and its synthesis method
  • Six-coordinate chiral dysprosium single-ion magnet with electromagnetic coupling effect and its synthesis method

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Embodiment 1

[0020] Dissolve 296.4 mg of tricyclohexylphosphine and 188.5 mg of DyCl 3 ·6H 2 The mixture of O was added to the beaker, then 15 mL of ethanol and 5 mL of water were added, and stirred at room temperature for 4 h. Then the mixed solution was left standing at room temperature for 3 days to obtain colorless cuboid crystals. The resulting crystals can be purified by washing with glacial ethanol. The calculated yield based on metal Dy was 52%.

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

[0022] 1) Structure determination:

[0023] The crystal structure was determined using a Supernova type X-ray single crystal diffractometer, using graphite monochromatized Mo-K α Rays is the incident radiation source, with Diffraction points were collected by scanning, and unit cell parameters were corrected by least square method. The crystal structure was solved by SHELXL-97 direct method from the difference Fourier electron ...

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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 preparation of functional materials, and relates to a six-coordination 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 single-molecule magnets with lanthanide metal ions is one of the important directions of current molecular magnetism. Among them, single-molecule magnets containing only one paramagnetic metal ion are also called single-ion magnets. Although the electric polarization (P) and magnetic polarization (M) of spontaneous polarization in multiferroic materials may respond to different weak electric fields and weak magnetic fields respectively, they can produce strong electromagnetic effects when M-P coupling, so they have important electromagnetic significance of theoretical research. [0003] Multiferroic ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F9/53H01F1/42
Inventor 程鹏王玉霞师唯
Owner NANKAI UNIV
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