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Dysprosium coordination polymer material with solvent molecule magnetic response and preparation method thereof

A coordination polymer and magnetic response technology, applied in the field of polymer materials, can solve the problems of few studies on single-molecule magnetic materials, and achieve the effects of large-scale popularization and application, high yield and novel structure

Inactive Publication Date: 2013-03-27
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently most coordination polymers with single-molecule magnet behavior are zero-dimensional, and there are few studies on single-molecule magnetic materials with three-dimensional pore structure and properties that can be adjusted by changing guest molecules.

Method used

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  • Dysprosium coordination polymer material with solvent molecule magnetic response and preparation method thereof
  • Dysprosium coordination polymer material with solvent molecule magnetic response and preparation method thereof
  • Dysprosium coordination polymer material with solvent molecule magnetic response and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] A preparation method of the dysprosium coordination polymer material having the magnetic response of solvent molecules, the steps are as follows:

[0025] 1) Mix 0.104g (0.75mmol) isonicotinic acid nitrogen oxide (HINO), 0.456g (1.00mmol) Dy(NO 3 ) 3 ·6H 2 O is mixed and added to the polytetrafluoroethylene liner of the hydrothermal reaction kettle, and 0.780g (17.00 mmol) of solvent ethanol is added to dissolve it, and the liner is put into the reaction kettle;

[0026] 2) Put the above hydrothermal reaction kettle into an oven, heat at 80°C for 72 hours, then cool down to 30°C at a rate of 1°C / h, filter, and wash with ethanol solvent to obtain the primary product, which is light yellow in appearance blocky crystals. The primary product yield calculated based on dysprosium metal ions was 41%;

[0027] 3) Mix 0.512g (1mmol) of the primary product of the above-mentioned coordination polymer and 0.820g (20mmol) of acetonitrile solvent in a container, heat in a 40-degr...

Embodiment 2

[0030] The method is basically the same as in Example 1, except that the solvent used in step 1) is changed to 1.240g (17.00mmol) DMF (N,N-dimethylformamide); in step 2), the washing solvent used is changed for DMF. The primary product yield calculated based on dysprosium metal ions was 41%.

[0031] The dysprosium coordination polymer material with the magnetic response of solvent molecules prepared above can be used as an information storage material.

[0032] Characterization of Dysprosium Coordination Polymer Materials with Solvent Molecular Magnetic Response Behavior:

[0033] 1) Structure determination of dysprosium coordination polymer materials based on the magnetic response behavior of solvent molecules

[0034] The crystal structure was determined using a Supernova type X-ray single crystal diffractometer, using Mo-Kα rays monochromated by graphite is the incident radiation, with The diffraction points were collected by scanning, and the unit cell parameters we...

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Abstract

The invention relates to a dysprosium coordination polymer material with solvent molecule magnetic response, which is a dysprosium (III) coordination polymer with unimolecular magnet behaviors. The chemical formula of the dysprosium coordination polymer material is {[Dy(INO)2(NO3)]}, each asymmetric unit contains dysprosium ions which exist in one coordination environment and stores three HINO ligands in connection modes, and dicaryon dysprosium units are further connected through two ligands to form a three-dimensional porous structure. The preparation method of the dysprosium coordination polymer material comprises the following steps of: mixing Dy (NO3)3.6H2O with HINO, and dissolving in a solvent; carrying out heating reaction, and then mixing solids obtained through filtering and washing with acetonitrile; and removing the acetonitrile after the heating reaction. The dysprosium coordination polymer material disclosed by the invention is novel in structure and based on an isonicotinic nitrogen oxide ligand, contains the nanometer-pore three-dimensional coordination polymer, shows the slow magnetic relaxation behavior and can be used as an information storage material; and the preparation method of the dysprosium coordination polymer material has the advantages of simple process, easiness for implementation and high productivity, and is conductive to large-scale popularization and application.

Description

【Technical field】 [0001] The invention relates to a polymer material with single-molecule magnet behavior, in particular to a dysprosium coordination polymer material with solvent molecule magnetic response and a preparation method. 【Background technique】 [0002] Magnetism is an important branch of physics. The application of magnetic materials has brought a huge impact on the development and progress of human society. For a long time, people have paid more attention to the properties of traditional magnets, mainly the long-range interaction between alloys and metal oxides and metal complexes based on the three-dimensional extended lattice, and the macroscopic magnetic properties generated under the arrangement of domain structures. In recent years, as an emerging physical and chemical interdisciplinary subject, molecular magnetism for the purpose of exploring the magnetic characteristics of open-shell molecules and open-shell molecular aggregates has attracted more and mor...

Claims

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Application Information

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IPC IPC(8): C07F5/00G11B5/62
Inventor 程鹏那勃师唯张振杰
Owner NANKAI UNIV
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