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Polyhydroxy compound as well as preparation method and application thereof

A polyol compound and reaction technology, applied in organic chemistry, electrochemical generators, structural parts, etc., can solve the problems of easily damaged structure and poor stability, and achieve enhanced conductivity, good stability, and increased size Effect

Active Publication Date: 2021-10-26
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current problems of conductive MOF: relatively poor stability, under high temperature and pressure, strong acid and strong alkali, the structure is easily destroyed

Method used

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  • Polyhydroxy compound as well as preparation method and application thereof
  • Polyhydroxy compound as well as preparation method and application thereof
  • Polyhydroxy compound as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] This example is the preparation of 1,2-dimethoxy-4,5-dinitro

[0067]

[0068] Measure 10mL of 1,2-dimethoxybenzene in the reaction bottle, under the condition of ice bath, slowly add 35mL of fuming nitric acid (95wt%) while stirring, heat the reaction at 85°C for 12h after the reaction rises to room temperature, cool After reaching room temperature, deionized water was added to precipitate a precipitate, which was vacuum filtered, the filter residue was washed with water, and recrystallized from ethanol to obtain yellow needle-like crystals, which were dried in vacuum.

[0069] 1,2-dimethoxy-4,5-dinitro proton NMR spectrum results are as follows figure 1 shown.

Embodiment 2

[0071] This example is the preparation of 1,2-dimethoxy-4,5-diaminobenzene

[0072]

[0073] Under the protection of nitrogen, add 1,2-dimethoxy-4,5-dinitrobenzene (1g, 4.4mmol), palladium carbon (150mg, wherein the mass content of palladium is 10%) into the reaction eggplant bottle, Add deoxygenated absolute ethanol (80mL), heat the reaction at 85°C, and add hydrazine hydrate (20mL, 50wt%) under nitrogen protection, react for 16h, vacuum filter after cooling, and filter the filtrate with anhydrous Na 2 SO 4 Drying; distillation under reduced pressure to obtain a light yellow solid product. Yield: 670 mg (3.98 mmol, 90.4%).

[0074] 1,2-dimethoxy-4,5-diaminobenzene H NMR spectrum results are as follows figure 2 shown.

Embodiment 3

[0076] This example is the preparation of 2,3,8,9,14,15-hexamethoxyquinoxalino[2,3,-a:2',3'-c]phenazine

[0077]

[0078] Under the protection of nitrogen, 1,2-dimethoxy-4,5-diaminobenzene (2.2g, 12.8mmol), cyclohexanone octahydrate (1g, 3.2mmol) were added to the reaction eggplant bottle, Add deoxygenated glacial acetic acid (50mL), heat the reaction at 110°C, reflux for 12h, cool to room temperature, vacuum filter, wash with deionized water (50mL*3), anhydrous methanol (50mL*3) , dried in vacuo to obtain a brown solid product. Yield: 86%.

[0079] Such as image 3 As shown, 2,3,8,9,14,15-hexamethoxyquinoxalino[2,3,-a:2',3'-c]phenazine H NMR spectrum data are: 1 H NMR (400MHz, CDCl 3 ): δ = 4.18 (s, 18H), 7.90 (s, 6H) ppm.

[0080] Such as Figure 4 As shown, 2,3,8,9,14,15-hexamethoxyquinoxalino[2,3,-a:2',3'-c]phenazine carbon NMR spectrum data are: 13 C NMR (100MHz, CDCl 3 ): δ = 56.8, 107.3, 141.2, 141.40, 154.78 ppm.

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Abstract

The invention relates to the technical field of metal organic framework materials, in particular to a polyhydroxy compound and a preparation method and application thereof. The polyhydroxy compound is a 2D[pi]-containing conjugated nitrogen-doped polyhydroxy ligand. By introducing nitrogen atoms and changing the electron density of the ligand, the deprotonation process is relatively easy in the ligand synthesis process, a single crystal can be obtained, and after MOF is synthesized, the MOF is used as a post-modification site and is coordinated with other metals, so that the conductivity is enhanced by increasing the polycyclic aromatic hydrocarbon size of the ligand and enhancing pi-pi conjugation.

Description

technical field [0001] The invention relates to the technical field of metal organic framework materials, in particular to a polyhydroxy compound and its preparation method and application. Background technique [0002] Metal-organic frameworks (MOFs) are widely used in energy conversion and storage, catalysis, sensing, and biomedicine due to their adjustable structure and function, ultra-high specific surface area and porosity, and uniform pore size distribution. However, due to the lack of MOFs with high electrical conductivity or proton conductivity, MOFs have relatively few applications in electronic devices. In recent years, two-dimensional conductive metal-organic framework materials have been used in many fields due to their excellent conductivity, such as supercapacitors, electrode materials, electrocatalysis, etc. Therefore, the design of two-dimensional conductive metal-organic framework materials has good applications. [0003] The current problems of conductive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/14C08G83/00H01M4/60H01M10/054
CPCC07D487/14C08G83/008H01M4/602H01M10/054Y02E60/10Y02E60/13
Inventor 何军李坚明叶新合冯子浩钟苑辉
Owner GUANGDONG UNIV OF TECH
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