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Imine bond connected porous organic molecular cage material, preparation and application thereof

An organic molecule, imine bond technology, applied in the field of preparation of porous organic molecular cage materials, can solve problems such as little stacking behavior, and achieve the effects of green and flexible preparation process, simple and controllable preparation process, and high specific surface area

Active Publication Date: 2021-02-23
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, before this, porous molecules such as calixarenes and cyclodextrins have already entered people's field of vision. However, earlier people studied more about the behavior of host and guest in the solution of such molecules, and almost seldom regarded such materials as porous molecules. materials to store separated gases, and few people have studied the intermolecular packing behavior of such materials

Method used

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  • Imine bond connected porous organic molecular cage material, preparation and application thereof
  • Imine bond connected porous organic molecular cage material, preparation and application thereof
  • Imine bond connected porous organic molecular cage material, preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Add 50 mg of 1,3,5-tricarboxybenzene (Benzene-1,3,5-tricarboxaldehyde, TFB, CAS: 3163-76-6) into a 1 mL reaction vial.

[0030] 2. Add 52 mg of (1R,2R)-cyclohexene-1,2-diamine (Oxalyldihydrazide, CHEDA, CAS: 208533-40-8) into the above reaction flask.

[0031] 3. Add 1 mL of dichloromethane and 1 μL of trifluoroacetic acid to the above reaction bottle.

[0032] 4. Seal the above reaction bottle with parafilm.

[0033] 5. Place the sealed reaction vial in step 4 at room temperature for 5 days in the dark.

[0034] 6. Contact the sealed reaction vial solution in step 5 with air to slowly evaporate the solvent 1d.

[0035] 7. Wash the material in step 6 with absolute ethanol to remove the reaction solvent and small molecule oligomers.

[0036] 8. XRD characterization test to verify that the two monomers form a well-ordered molecular cage structure in this solvent system. Therefore, this solvent system is beneficial to the preparation of POCs with this crystal-ordere...

Embodiment 2

[0040] 1. Add 50 mg of 1,3,5-trialdehyde benzene into a 1 mL reaction bottle.

[0041] 2. Add 52 mg of (1R,2R)-cyclohexene-1,2-diamine to the above reaction flask.

[0042] 3. Add 1 mL of absolute ethanol and 1 μL of glacial acetic acid to the above reaction bottle.

[0043] 4. Seal the above reaction bottle with parafilm.

[0044] 5. Place the sealed reaction vial in step 4 at room temperature for 5 days in the dark.

[0045] 6. Contact the sealed reaction vial solution in step 5 with air to slowly evaporate the solvent 1d.

[0046] 7. Wash the material in step 6 with absolute ethanol to remove the reaction solvent and small molecule oligomers.

[0047] 8. XRD characterization test to verify that the two monomers did not form a better ordered molecular cage structure in this solvent system. Therefore, this solvent system is not suitable for the preparation of POCs with this crystal-ordered structure.

[0048] 9. The mass of the obtained porous organic molecular cage mate...

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Abstract

The invention relates to preparation of a POCs (Porous Organic Molecular Cage)-based material and application of the POCs-based material to gas adsorption. The preparation method specifically comprises the following steps of: mixing two organic monomers, namely benzene-1,3,5-tricarboxaldehyde (TFB) containing aldehyde group and cyclohexene diamine (CHEDA) containing amino group respectively, and then carrying out Schiff base condensation reaction under the condition of acid catalysis so as to prepare the porous organic molecular cage with a large specific surface area and a uniform pore structure in one step. The prepared porous organic molecular cage (TFB-CHEDA) has relatively good stability and a large specific surface area, and contains a large number of uniform microporous structures and double bonds capable of being used for post-synthesis modification. And finally, the prepared porous organic molecular cage is applied to adsorption of gas molecule CO2.

Description

technical field [0001] The invention specifically relates to the preparation of an imine-linked porous organic molecular cage material, which can be used for gas adsorption. Background technique [0002] The development of adsorbents and technological innovations have made adsorption technology a key separation method in biochemical, petrochemical and pharmaceutical chemical industries. Adsorbent technology will play a very important role in all future energy, manufacturing and environmental technologies. Fuel desulfurization, CO 2 Capture, water pollution control, etc. are some examples of applications for adsorption separation and purification technologies. However, the high-tech industry has higher and higher requirements on the functional properties of adsorption materials, which provides a very good platform for the innovation of new adsorption materials. On this basis, the research and development of new porous materials is related to future economic development and ...

Claims

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Application Information

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IPC IPC(8): C07D487/18B01J20/22B01J20/30B01D53/02
CPCC07D487/18B01J20/22B01D53/02B01D2257/504Y02P20/151Y02C20/40
Inventor 欧俊杰李亚马淑娟叶明亮
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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