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Micro-porous copper coordination polymer, preparation method and application thereof

A copper coordination and polymer technology, applied in the direction of copper organic compounds, chemical instruments and methods, and other chemical processes, to achieve strong adsorption performance, high thermal stability, and good application prospects

Inactive Publication Date: 2009-09-16
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there are relatively few literature reports on the construction of organo-metallic adsorption materials using nitrogen-containing heterocyclic aromatic acids as organic ligands.

Method used

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  • Micro-porous copper coordination polymer, preparation method and application thereof
  • Micro-porous copper coordination polymer, preparation method and application thereof
  • Micro-porous copper coordination polymer, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The synthesis of embodiment 1 complex:

[0019] 0.2mmol H 2 L was dissolved in 15ml methanol / DMF (volume ratio 1:3) mixed solvent, and then 0.2mmol CuCl was added 2 4H 2 O, after reacting at 75° C. for 5 minutes under stirring conditions, filter, and the filtrate was left at room temperature. After one week, the precipitated crystals were collected, washed with DMF, and dried to obtain the target product with a yield of 45%.

Embodiment 2

[0020] The synthesis of embodiment 2 complexes:

[0021] 0.2mmol H 2 L was dissolved in 15ml methanol / DMF (volume ratio 1:3.5) mixed solvent, and then 0.3mmol CuCl was added 2 4H 2 O, after reacting at 65° C. for 8 minutes under stirring conditions, filter, and the filtrate was left at room temperature. After one week, the precipitated crystals were collected, washed with DMF, and dried to obtain the target product with a yield of 50%.

[0022] Characterization of complexes:

[0023] (1) Powder diffraction characterizes the phase purity ( figure 2 )

[0024] Powder diffraction data collection was done on a Rigaku D / Max-2500 diffractometer operating at 40 kV at 100 mA using graphite monochromatized copper target X-rays. Fixed scanning with a divergence deviation of 1° and a receiving slit width of 0.3 mm. Density data collection was done using 2θ / θ scanning mode, with continuous scanning in the range of 3° to 60°, with a scanning speed of 8° / second and a span of 0.02° / ti...

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Abstract

The invention discloses a micro-porous copper coordination polymer, a preparation method and application thereof. The copper coordination polymer of the invention is particularly a compound with the chemical formula being {[Cu(L)](DMF)(H2O)}, wherein, L represents the di-anion of 5-(1-tetrazolyl)-1,3-benzene dicarboxylic acid; and DMF represents N,N-dimethylformamide. The compound is prepared on the basis of solvent-thermal method, so that the purity of the obtained crystal is higher. The micro-porous copper coordination polymer of the invention can keep the coordination framework unchanged after the free solvent molecules are detached, larger one-dimensional channels can be shown in the a-axis direction of the crystal; furthermore, the compound has good thermal stability, and the compound has higher adsorbability of hydrogen under the conditions of either 77K normal pressure or high pressure, therefore, the copper coordination polymer is applicable as the adsorption material.

Description

technical field [0001] The present invention relates to microporous metal-organic coordination polymer material, especially a kind of copper coordination polymer and preparation method and application thereof, and described copper coordination polymer is Cu-5-(1- Tetrazolyl)-1,3-phthalic acid three-dimensional network structure polymer, which has a strong adsorption and separation function for hydrogen. Background technique [0002] In recent years, the construction of coordination polymer materials with novel pore structures through the coordination of metal ions and organic multifunctional ligands has attracted great interest. Not only because they have novel and exquisite topological network structures, but mainly because they can exhibit specific optical, electrical, magnetic, catalytic, and adsorption-separation properties or functions (Yaghi, O.M.; O'Keeffe, M.; Ockwig, N.W. ; Chae, H.K.; Eddaoudi, M.; Kim, J. Nature 2003, 423, 705; L.; Larsson, K. Molecule-Based Ma...

Claims

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Application Information

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IPC IPC(8): C07F1/08C07D257/04B01J20/22C01B3/56
Inventor 卜显和张姝明常泽
Owner NANKAI UNIV
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