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A two-dimensional spin-crossed molecular magnetic material and its preparation method

A magnetic material and spin crossover technology, applied in the field of bivalent iron two-dimensional spin cross coordination polymer magnetic material and its preparation

Inactive Publication Date: 2020-07-28
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is still a great challenge to design and construct such bistable spin-crossed molecular magnetic materials with special structures and properties, especially spin-switching complexes with multiple perturbation factors.

Method used

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  • A two-dimensional spin-crossed molecular magnetic material and its preparation method
  • A two-dimensional spin-crossed molecular magnetic material and its preparation method
  • A two-dimensional spin-crossed molecular magnetic material and its preparation method

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Embodiment Construction

[0016] In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] An embodiment of the present invention provides a two-dimensional spin crossed molecular magnetic material, the molecular formula of the material is C 42 h 40 FeN 10 o 8 S 2 ; The chemical formula is: [FeL 2 (SCN) 2 ] n 2nH 2 O·nCH 3 OH (L represents 5-methyl-1,3-xylylenebis-4-pyridylamide).

[0018] The crystal structure of the magnetic material is: the crystal belongs to the monoclinic crystal system, the space group is P2(1) / n, and the unit cell parameters are a=8.3685(5) Å, b=17.9701(10) Å, c=14.8291( 11) Å, α = 90°, β = 103.411(7)°, γ = 90°

[0019] Provided is a method for preparing a two-dimensional spin crossed molecula...

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Abstract

A kind of bivalent iron two-dimensional spin cross-coordination polymer magnetic material based on V-type bidentate pyridine amide ligand, which is composed of [FeL 2 (SCN) 2 ] (L represents 5-methyl-1,3-phthalamide (bis-4-pyridyl) amide) neutral two-dimensional network, crystal water molecules, crystal methanol molecules. The advantage of the present invention is that the two-dimensional coordination polymer can realize high-low spin conversion through temperature changes or light radiation, and is a typical temperature and light double-controlled spin-crossing molecular magnetic material. It has potential application value in magnetic switch material.

Description

technical field [0001] The invention belongs to the technical field of synthesis of spin-crossed magnetic materials in molecular magnetic materials, and specifically relates to a bivalent iron two-dimensional spin-crossed coordination polymer magnetic material based on a V-type bidentate pyridine amide ligand and a preparation method thereof . Background technique [0002] In the past two or three decades, molecular-based magnetic materials have been developed very rapidly. Generally, molecular-based magnetic materials are defined as useful magnetic substances that mainly have a molecular framework structure through the combination of molecules or charged molecules. Unlike traditional magnetic materials, molecular-based magnetic materials have the advantages of small size, light relative density, diverse structures, and easy composite processing and molding. They may be used as materials for making spacecraft, microwave absorption stealth, electromagnetic shielding, and inf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00
CPCC08G83/008
Inventor 张道鹏石景文兰文龙
Owner SHANDONG UNIV OF TECH