Preparation method of three-dimensional super-molecule framework coordination polymer

A technology of coordination polymers and supramolecules, applied in the field of material chemistry, to achieve good crystallinity, high chemical stability, and good product crystal structure

Inactive Publication Date: 2016-01-13
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, three-dimensional supramolecular framework coordination polymers with

Method used

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  • Preparation method of three-dimensional super-molecule framework coordination polymer
  • Preparation method of three-dimensional super-molecule framework coordination polymer
  • Preparation method of three-dimensional super-molecule framework coordination polymer

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Experimental program
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Effect test

Embodiment 1

[0019] Preparation of the target framework coordination polymer: at room temperature, first mix 0.023g CoCl 2 ·6H 2 5 mL of deionized aqueous solution of O was added to 0.024 g of 1,4-bis(1H-1,2,4-triazole-methylene)benzene (bbtz) in 5 mL of DMF aqueous solution, and then 0.027 g of azobenzene- 3,3-dicarboxylic acid (referred to as H 2 azdc) and 0.004g NaOH in 5mL DMF solution were added to the above mixed solution, after about 20min of reaction, after standing and filtering, the solid phase was taken, which was the target framework coordination polymer.

Embodiment 2

[0021] Preparation of the target framework coordination polymer: at room temperature, first mix 0.046g CoCl 2 ·6H 2 O in 8 mL of deionized water was added to 0.048 gbbtz in 8 mL of DMF in water, and then 0.054 g of H 2 Azdc and 0.008g NaOH in 8mL DMF solution were added to the above mixed solution, after about 20 minutes of reaction, after standing and filtering, the solid phase was taken, which was the target framework coordination polymer.

Embodiment 3

[0023] Preparation of the target framework coordination polymer: at room temperature, first mix 0.069g CoCl 2 ·6H 2 O in 12 mL of deionized water was added to 0.072 gbbtz in 13 mL of DMF in water, and then 0.080 g of H 2 Azdc and 0.012g NaOH in 13mL DMF solution were added to the above mixed solution, after about 20 minutes of reaction, after standing and filtering, the solid phase was taken, which was the target framework coordination polymer.

[0024] 2. Product characteristics:

[0025] figure 1 It is a diagram of the coordination environment of the metal ion in the center of the complex. From figure 1 It can be seen that the central cobalt atom has 6 coordination atoms and is in a slightly distorted octahedral coordination environment.

[0026] figure 2 It is the spatial packing diagram of the double interspersed three-dimensional supramolecular framework coordination polymer formed by the hydrogen bond effect obtained by adopting the method of the present invention...

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Abstract

The invention relates to a preparation method of a three-dimensional super-molecule framework coordination polymer, and belongs to the technical field of material chemistry. A two-dimensional metal-organic framework coordination polymer {[Co(azdc)(bbtz)(H2O)2].2DMF}n is synthesized by adopting a simple solution method, two-dimensional metal-organic frameworks are further formed into an amphimorphic interpenetrating three-dimensional super-molecule framework coordination polymer through hydrogen bond effects. In the amphimorphic interpenetrating framework coordination polymer, nitrogen atoms which are not coordinated exist in ligands azdc2- and bbtz, so that the framework coordination polymer presents favorable reversible adsorption-desorption characteristic for carbon dioxide, methane, nitrogen and the like, and excellent selectivity for carbon dioxide.

Description

technical field [0001] The invention belongs to the technical field of material chemistry, in particular to a preparation method of a metal-organic framework supramolecular coordination polymer. Background technique [0002] Metal-organic frameworks supramolecular coordination polymers (metal-organic frameworks, referred to as MOFs) are a new type of zeolite with a supramolecular microporous network structure formed by self-assembly using the coordination between organic ligands and metal ions. Porous materials, because of their high porosity, large specific surface area, convenient synthesis, variable frame size, chemical modification according to the target requirements, and rich structures, have been widely used in gas adsorption and other fields. The prospect has attracted widespread attention. [0003] Compared with activated carbon and zeolite materials, metal-organic framework complex porous materials have the following advantages: highly ordered pore structure, cont...

Claims

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Application Information

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IPC IPC(8): C07F15/06B01J20/22B01J20/28B01J20/30
Inventor 张扣林经雏月
Owner YANGZHOU UNIV
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