Fluorescence nanometer organic porous material as well as preparation method and application thereof

A technology of porous materials and fluorescent nanometers, applied in luminescent materials, organic chemistry, fluorescence/phosphorescence, etc., can solve the problems that organic porous materials cannot be used for fluorescence detection, etc., and achieve the effect of broad application prospects

Inactive Publication Date: 2014-02-26
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the shortcoming that the organic porous material synthesized in the prior art cannot be used for fluorescence detection, the present invention provides a method for preparing a fluorescent nano-organic porous material that can be used for fluorescence detection, a fluorescent nano-organic porous material prepared by the method, and Application of the Fluorescent Nanoorganic Porous Material

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  • Fluorescence nanometer organic porous material as well as preparation method and application thereof
  • Fluorescence nanometer organic porous material as well as preparation method and application thereof
  • Fluorescence nanometer organic porous material as well as preparation method and application thereof

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preparation example Construction

[0018] A method for preparing a fluorescent nano-organic porous material, the method comprises: under the condition of Suzuki-Miyaura reaction, in an inert atmosphere, in the presence of a palladium-containing catalyst, an alkali metal carbonate aqueous solution and an organic solvent, organic molecules are A building block is in contact with a linker molecule; the organic molecular building block contains tetrakis(4-bromophenyl)ethylene, and the linker molecule is one or more of terephthalic acid, isophthalic diboronic acid, and phthalic diboronic acid .

[0019] In the preparation method of the present invention, the molar ratio of the organic molecular building block to the linking molecule is 1:1.5-2.5, and considering optimizing the properties of the material obtained by the polymerization reaction, the organic molecular building block and the The molar ratio of the linking molecules is preferably 1:2.

[0020] In the preparation method of the present invention, the cont...

Embodiment 1

[0032] Preparation of tetrakis(4-bromophenyl)ethylene

[0033] Into a 150mL round-bottom flask, add 1g 4,4'-dibromobenzophenone (2.94mmol) (Sahn Chemical Technology Co., Ltd.), 2g zinc powder (30mmol), 5.8g TiCl 3 / AlCl 3 (TiCl 3 6.7 mmol) (Alfa Aesar Chemical Co., Ltd.) and 100 mL of tetrahydrofuran. The system was stirred and refluxed for 12 h under nitrogen protection. After the reaction was completed, the system was cooled to 25 °C, filtered, 100 mL of ethyl acetate was added to the filtrate, 100 mL of water was added, and the water layer and the organic layer were separated, and the organic layer was collected, and 15 g of anhydrous sodium sulfate was added. After drying, the sodium sulfate solid was discarded, and the solvent in the remaining liquid was removed by rotary evaporation to give 0.9 g of tetrakis(4-bromophenyl)ethylene (1.40 mmol) in 95% yield.

[0034]

[0035] The product was characterized by H NMR spectroscopy and was consistent with the structural c...

Embodiment 2

[0037] Preparation of Fluorescent Nano-organic Porous Materials

[0038] Into a 150 mL round bottom flask were added 162 mg of tetrakis(4-bromophenyl)ethylene (0.25 mmol) prepared in Example 1, 83 mg of terephenyl diboronic acid (0.5 mmol) (Alfa Aesar Chemical Co., Ltd.) and 64 mL of N,N - Dimethylformamide (Sinopharm Chemical Reagent Co., Ltd.). Stir at 25°C until all solids are dissolved, then add 2M potassium carbonate aqueous solution (8.0 mL), then the system is subjected to two vacuum degassing treatments, and 20 mg of catalyst Pd (PPh) is added. 3 ) 4 (Bailingwei Technology Co., Ltd.), degassed in vacuum again, and then the system was stirred at 150° C. for 24 h under nitrogen protection.

[0039]

[0040]After the reaction was completed and the temperature of the reaction system dropped to 25°C, the mixture was poured into water, the solid was filtered off with suction, and the filter cake was washed with water, dichloromethane and methanol in turn. The solid was...

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Abstract

The invention provides a preparation method of a fluorescence nanometer organic porous material, which comprises the following steps that: organic molecular building blocks are in contact with joint molecules under the Suzuki-Miyaura reaction conditions in inertia atmosphere and under the existence of catalysts containing palladium, alkali carbonate water solution and organic solvents; the organic molecular building blocks contain tetra-(4-bromobenzol) ethylene, and the joint molecules are one kind or several kinds of materials from P-boric acid, M-boric acid and phthalic boric acid. The invention also provides the fluorescence nanometer organic porous material prepared by the method. The porous material prepared by the method has certain Brunauer, Emmett and Teller (BET) specific surface area and has the fluorescence property, so the porous material can be used in aspects of catalysis, gas storage, molecular separation, organic photoelectric materials, optical control switches, fluorescence probes, chemical or biological sensors, novel optical materials and the like.

Description

technical field [0001] The invention relates to a preparation method of a fluorescent nano-organic porous material, a fluorescent nano-organic porous material prepared by the method and the application of the fluorescent nano-organic porous material. Background technique [0002] The application prospects of organic porous materials in catalysis, gas storage, and molecular separation have aroused great interest among chemists. Traditional porous materials include inorganic crystalline structures (eg, zeolites) as well as amorphous network structures (eg, silica, activated carbon). In recent years, the synthesis of organic porous materials has achieved rapid development, such as the synthesis of metal-organic framework materials, covalent organic framework materials, and conjugated microporous polymer materials. Metal-organic framework materials have the advantages of softness, light weight, diverse spatial structure, large specific surface area, and strong hydrogen storage ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C1/32C07C15/52C07C13/72C09K11/06G01N21/64
Inventor 韩宝航王金祥陈琦边宁张新建周鼎
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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