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Two-dimensional ultra-microporous crystalline rare earth coordination polymer with stable structure as well as preparation method and application of two-dimensional ultra-microporous crystalline rare earth coordination polymer

A coordination polymer, a technology with stable structure, applied in separation methods, chemical instruments and methods, educts, etc., can solve the problem of very little research on ultra-microporous coordination polymers, and improve the material transmission speed and fluorescence. The effect of response rate

Active Publication Date: 2021-07-16
山东瑞捷新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the current research focuses on extremely microporous coordination polymers, but there is very little research on ultramicroporous coordination polymers.

Method used

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  • Two-dimensional ultra-microporous crystalline rare earth coordination polymer with stable structure as well as preparation method and application of two-dimensional ultra-microporous crystalline rare earth coordination polymer
  • Two-dimensional ultra-microporous crystalline rare earth coordination polymer with stable structure as well as preparation method and application of two-dimensional ultra-microporous crystalline rare earth coordination polymer
  • Two-dimensional ultra-microporous crystalline rare earth coordination polymer with stable structure as well as preparation method and application of two-dimensional ultra-microporous crystalline rare earth coordination polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 4,4'4"-tricarboxylic acid triphenylamine ligand (0.03mol), LaCl 3 (0.05mol), organic solvent N,N-dimethylformamide (1.2mL), HCL solution (pH=1,0.5mL), sealed and heated at 100 degrees Celsius for 21 hours to obtain the crystalline substance .

[0026] Its reaction principle is as follows:

[0027]

Embodiment 2

[0029] Add 4,4'4"-tricarboxylic acid triphenylamine ligand (0.05mol), La(NO 3 ) 3 (0.05mol), organic solvent N,N-diethylformamide (1.0mL), HCL solution (pH=1, 0.2mL), distilled water (0.8ml), sealed and heated at 100 degrees Celsius for 24 hours , available in crystalline form.

Embodiment 3

[0031] Add 4,4'4"-tricarboxylic acid triphenylamine ligand (0.02mol), La(NO 3 ) 3 (0.05mol), organic solvent N,N-dimethylacetamide (1.0mL), aqueous solution (pH=1, 0.5mL), distilled water (0.3ml), sealed and heated at 100 degrees Celsius for 24 hours, Crystalline material available.

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Abstract

The invention discloses a two-dimensional ultra-microporous crystalline rare earth coordination polymer with a stable structure as well as a preparation method and application of the two-dimensional ultra-microporous crystalline rare earth coordination polymer. The rare earth coordination polymer obtained by assembling and synthesizing a 4, 4 '4' '-triformic acid triphenylamine ligand and rare earth ions La < 3 + > has a two-dimensional through ultra-microporous structure, so that the material transmission speed of small molecules in the microporous structure is increased, so that CO2 gas adsorption can reach adsorption saturation more quickly, and meanwhile, the fluorescence response rate is also improved in fluorescence sensing application. The specific crystal material synthesized by the invention is applied to gas adsorption (including but not limited to CO2 molecules), fluorescence luminescence and fluorescence sensing.

Description

technical field [0001] The invention belongs to the field of coordination polymers, and in particular relates to a structurally stable two-dimensional ultra-microporous crystalline rare earth coordination polymer, a preparation method and an application thereof. Background technique [0002] Porous coordination polymers, also known as metal-organic framework compounds, are a class of crystalline porous inorganic-organic hybrid materials composed of metal ions and organic ligands. Compared with traditional inorganic molecular sieves, porous coordination polymers have the advantages of diverse structures, high specific surface area, and easy modification, and can be used in the fields of adsorption, separation, molecular recognition, and catalysis. According to the definition and classification of pore size by the International Union of Pure and Applied Chemistry (IUPAC), micropores with a pore size of 0.7-2.0 nanometers are called supermicropores, and micropores with a pore s...

Claims

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Application Information

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IPC IPC(8): C08G83/00B01D53/02G01N21/64
CPCC08G83/008B01D53/02G01N21/643B01D2257/504B01D2253/202Y02P20/151
Inventor 曹明磊张典华田苗苗
Owner 山东瑞捷新材料有限公司
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