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Rigid tetracarboxyl hydrogen bond organic framework material as well as preparation and application thereof

An organic framework and tetracarboxyl technology, applied in the field of organic photoelectric materials, can solve problems such as separation difficulties, and achieve the effects of simple preparation process, low cost, and easy recycling

Active Publication Date: 2021-08-03
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since C 3 h 4 / C 3 h 6 The kinetic diameter and molecular size are similar, and the separation is more difficult
for C 3 h 4 / C 3 h 6 Separated HOFs materials are still in the blank

Method used

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  • Rigid tetracarboxyl hydrogen bond organic framework material as well as preparation and application thereof
  • Rigid tetracarboxyl hydrogen bond organic framework material as well as preparation and application thereof
  • Rigid tetracarboxyl hydrogen bond organic framework material as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0049] HOF-30-C 1 , HOF-30-C 2 , HOF-30-C 3 and the synthesis of HOF-30a

[0050] The aforementioned HOF-30-C 1 The specific synthesis method is: under heating conditions, 50.0 mg N, N, N', N' -Tetrakis(4-carboxyphenyl)-1,4-phenylenediamine ligand was dissolved in methanol (100.0 mL). Filter the solution while it is hot (25-80°C) and let it cool down at room temperature naturally. Yellow octahedral crystals (HOF-30-C 1 ) 35.0 mg, yield: 70%. Such as figure 1 as shown,

[0051] The aforementioned HOF-30-C 2 The specific synthesis method is as follows: 50.0 mg of N,N,N',N'-tetrakis(4-carboxyphenyl)-1,4-phenylenediamine ligand was dissolved in ethanol (50.0 mL) under heating conditions middle. Filter the solution while it is hot (25-80°C) and let it cool naturally. Yellow octahedral crystals (HOF-30-C 2 ) 37.5 mg, yield: 75%. Such as figure 2 as shown,

[0052] In the foregoing, under the condition of heating, 250.0 mg N, N, N', N' -Tetrakis(4-carboxyphenyl)-...

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Abstract

The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a rigid tetracarboxyl hydrogen bond organic framework material and preparation and application thereof. The monomer molecule H4TPA of the rigid tetracarboxyl hydrogen bond organic framework material is N, N, N', N'-tetra (4-carboxyphenyl)-1, 4-phenylenediamine. The framework belongs to an orthorhombic system; the space group is Ibca; alpha = beta = gamma = 90 degrees; Z = 8; each tetrahedral H4TPA molecule is connected with four adjacent H4TPA molecules through four pairs of intermolecular -COOH... HOOC- hydrogen bonds; and the distance of O... O and the angle of O-H.... O are 2.6 angstroms and 171 degrees respectively. The rigid tetracarboxyl hydrogen bond organic framework material has the beneficial effects that the rigid tetracarboxyl hydrogen bond organic framework material is simple in preparation process and low in cost, is applied to selective separation and adsorption of propylene and propyne in C3H4 / C3H6 mixed gas, is easy to recycle and regenerate, and has good separation stability.

Description

technical field [0001] The invention belongs to the technical field of organic photoelectric materials, and in particular relates to a rigid tetracarboxyl hydrogen-bonded organic framework material and its preparation and application. Background technique [0002] At present, propylene is one of the most important chemical raw materials in the world (the global production capacity will exceed 116 million tons in 2020), and propyne impurities will inevitably be produced in the production process, and the existence of very low concentration (≥ 1 ppm) propyne will cause Significant impact on downstream polypropylene production. Therefore, it is of great industrial and scientific significance to realize the high-efficiency purification of low-concentration propyne in propylene. In the traditional petrochemical industry, the separation of propyne mainly adopts low-temperature refining or catalytic hydrogenation process, which has the disadvantages of high energy consumption an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00B01J20/26B01J20/30C07C7/12C07C11/06C07C11/22
CPCC08G83/008B01J20/262C07C7/12C07C11/06C07C11/22
Inventor 于宝秋王海龙姜建壮刘小琳
Owner UNIV OF SCI & TECH BEIJING
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