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Quadruple helicene free radical molecule with thermally induced hysteresis loop as well as preparation method and application thereof

A quadruple helicene and free radical technology, applied in the generation of organic free radicals, the preparation of organic compounds, organic chemical methods, etc., can solve the problems of insensitivity to environmental changes and instability of organic π free radical molecules

Active Publication Date: 2021-05-11
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical shortcomings of existing organic π radical molecules such as instability and insensitivity to environmental changes, the present invention provides a quadruple helicene radical molecule with thermally responsive dynamic behavior, aiming at constructing new multifunctional molecules Material

Method used

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  • Quadruple helicene free radical molecule with thermally induced hysteresis loop as well as preparation method and application thereof
  • Quadruple helicene free radical molecule with thermally induced hysteresis loop as well as preparation method and application thereof
  • Quadruple helicene free radical molecule with thermally induced hysteresis loop as well as preparation method and application thereof

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Experimental program
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Embodiment 1

[0060]Synthetic route See Fanghe 1:

[0061]

[0062]The specific steps are:

[0063](1) 1 (1 g, 1.2 mmol) was dissolved in anhydrous 150 ml of THF under the protection of argon, and 2-formylphenyl boric acid, Pd (PPH)3)4(28mg, 0.024mmol) and K2CO3The aqueous solution (2 m, 25 mL), the mixture was heated to 80 ° C and stirred. After the reaction was completed, it was extracted with 100 ml of DCM and 15 mL, and the organic phase was washed with saturated brine, and the evaporator removing the solvent was removed, and the crude product was purified by column chromatinica gel to give 2.

[0064](2) 2 (200 mg, 0.2 mmol) was dissolved in anhydrous 80 ml of THF under the protection of argon, and the THF solution (1M) of magnesium bromide (1m) was added (3,5-di (trifluoromethyl) phenyl). 2.5 mL) and stirred at room temperature. After the reaction is completed, add water to the reaction, extract with 50 ml DCM, no water MGSO4Dry, rotary evaporator removal solvent. The crude product directly solves 100m...

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Abstract

The invention belongs to the field of organic magnetic materials, and particularly discloses a quadruple helicene free radical molecule with conjugated free radical thermotropic hysteresis loop characteristics. The invention also discloses a preparation method of the quadruple helicene free radical, a thermally induced magnetic conversion mechanism and magnetic conversion material characteristics. The helicene multi-free-radical molecule is constructed, and the electronic structure of the free-radical molecule and the magnetic exchange effect of spinning electrons of the free-radical molecule can be regulated and controlled at the molecular level, so that the helicene multi-free-radical molecule can show the change of substance magnetism under the macroscopic condition. The molecule can be applied to organic magnetic function conversion materials, organic spinning electronic devices and the like.

Description

Technical field[0001]The present invention relates to the field of organic molecular materials, and more particularly to magnetic function molecular materials.Background technique[0002]Organic magnetic materials have the advantages of conductive, light, good light transmittance, excellent solubility, strong plasticity, easy to composite processing, and have potential application value in the field of functional materials. However, organic magnetic materials are usually divided into paramagnetic materials, anti-ferromagnetic materials, ferromagnetic materials, etc., wherein iron magnetic materials are considered to be a functional material that is extremely across the time, for organic cyclone valves, giant magnetic resistors, quantums. Burked in the calculator play a key role. Among them, the magnetic retardation of retardation is more characteristic properties of ferromagnetic materials. The magnetic properties of the substance are derived from the spin magnetic moment of electrons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C43/225C07C41/30C07C41/18C07C45/68C07C47/575C07B60/00H01F1/42
CPCC07C43/225C07C41/30C07C41/18C07C45/68C07B61/02H01F1/42C07B2200/03C07C2603/54C07C47/575
Inventor 曾泽兵李直彧吕瑞之郭靖谢胜王燕培李波刘红玉杨晨馨
Owner HUNAN UNIV
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