Metal organic gel based on tetrazole compounds

A technology of gel and azoles, which is applied in the field of supramolecular chemistry and can solve the problem of less application of compounds

Inactive Publication Date: 2013-08-14
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the research on supramolecular chemistry of tetrazole compounds mainly focuses on crystal materials (W-T Liu, J-Y Li, Z-P Ni, Y-C Ou, J-D Leng, J-L Liu, Crystal Growth & Design, 2012, 12, 1482; M-G Liu, P-P Zhang, J Peng, H-X Meng, X Wang, M Zhu, Crystal Growth & Design, 2012, 12, 1273.), and the application of this type of compound in the field of gel is seldom

Method used

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  • Metal organic gel based on tetrazole compounds
  • Metal organic gel based on tetrazole compounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 30 mg of compound 1 (methyl tetrazole, R=CH 3 ), add 1mL N, N-dimethylformamide, and dissolve the solid completely; add 82.1mg of palladium acetate to another stoppered test tube, add 1mL N, N-dimethylformamide, and dissolve the solid completely, Then mix the two and let it stand for a while to form a brown-yellow transparent gel1.

[0021] From this gel the AFM height map and phase map (eg figure 1 As shown) we can see many small particles that are closely packed together, with an average diameter of about 45nm, and the particles are closely connected together to form a network structure, thereby wrapping the solvent to form a gel.

Embodiment 2

[0023] Add 30 mg of compound 2 (n-octyl tetrazole, R=C 8 h 17 ), add 1mL N, N-dimethylformamide, and dissolve the solid completely; add 28.3mg of palladium acetate to another stoppered test tube, add 1mL N, N-dimethylformamide, and completely dissolve the solid, Then mix the two and let it stand for a while to form a brown-yellow transparent gel 2.

[0024] The transmission electron microscopy of this gel, such as figure 2 As shown, on the copper grid of the same sample, we observed three kinds of morphologies, one is relatively dispersed particles, one is relatively dense particles, and the last one is connected particles, extending almost to A network structure. We speculate that this network structure can effectively wrap the organic solvent to form a stable gel.

Embodiment 3

[0026] Add 50 mg of compound 3 (porphyrin ring containing four tetrazoles, its molecular formula is shown below) into a stoppered test tube, add 1 mL of N,N-dimethylformamide to completely dissolve the solid; Add 12.5 mg of palladium acetate and 1 mL of N,N-dimethylformamide to the test tube to completely dissolve the solid, then mix the two, and let stand for a while to form a brown-yellow transparent gel 3.

[0027] .

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Abstract

The invention belongs to the field of supramolecular chemistry, and in particular relates to a coordination polymer gel (metal organic gel) formed based on tetrazole compounds and palladium acetate, and a preparation method of the metal organic gel. The framework of the tetrazole compounds comprise the structures of aryl, alkyl, porphyrin ring and the like; the tetrazole groups contain single tetrazole to four tetrazole; the tetrazole compounds and palladium acetate form irreversible metal organic gel in a solvent N,N-dimethylformamide or N,N-dimethylacetamide; and the tetrazole compounds do not have the characteristic of forming gel in the used solvent system. The used methyl tetrazole compound is the compound with minimal molecular weight, and the gel formed by the tetrazole compound and the palladium acetate is the simplest known coordination polymer gel at present.

Description

technical field [0001] The invention belongs to the field of supramolecular chemistry. It specifically relates to a coordination polymer gel formed based on tetrazole compounds and palladium acetate (ie metal organic gel) and a preparation method thereof. Background technique [0002] Metal-organic gels, that is, coordination polymer gels. Different from pure organic gels, this type of gel must first form a coordination polymer through the coordination between organic ligands and metal ions, and then wrap the solvent to form a gel, which makes it have many organic properties. Due to the unique physical and chemical properties that gels do not have, the development of metal-organic gels has aroused great interest in recent years, and many excellent results have been achieved. Traditionally, the organic ligand units in most organometallic gels require some specific auxiliary groups to promote gelation, such as long-chain alkyl groups, ether chains, aryl groups, etc., to incr...

Claims

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Application Information

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IPC IPC(8): C07D487/22C07F15/00
Inventor 闫立伟张义婷叶仲斌
Owner SOUTHWEST PETROLEUM UNIV
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