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Seven-membered cucurbituril-rare earth metal linear tubular supramolecular polymer, preparation and application thereof

A supramolecular polymer, rare earth metal ion technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as unreported, and achieve the effect of simple operation and high yield

Inactive Publication Date: 2012-06-27
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are no reports on the construction of supramolecular polymers with linear pipe structures such as seven-membered melon rings (Q[7]) and eight-membered melon rings (Q[8]).

Method used

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  • Seven-membered cucurbituril-rare earth metal linear tubular supramolecular polymer, preparation and application thereof
  • Seven-membered cucurbituril-rare earth metal linear tubular supramolecular polymer, preparation and application thereof
  • Seven-membered cucurbituril-rare earth metal linear tubular supramolecular polymer, preparation and application thereof

Examples

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Embodiment 1

[0055] Example 1: Transition metal CdCl 2 Inducing seven-membered melon ring and rare earth metal to form tubular structure supramolecular polymer synthesis implementation method. Take La(NO 3 ) 3 As an example:

[0056] Weigh Q[7] 20 mg (0.015 mmol), lanthanum nitrate 51.62 mg (0.12 mmol), CdCl 2 27.58 mg (0.09 mmol). Dissolve Q[7] with 1.0 mL of 6.0 mol / L HCl and heat to 60°C, shake for several minutes to clarify the solution. La(NO 3 ) 3 Dissolve in 1.0 mL of 6.0 mol / L HCl, heat to 60°C, and shake. CdCl 2 Dissolve with 1.0 mL of 6.0 mol / L HCl and heat to 60°C to fully dissolve and evenly. La(NO 3 ) 3 Inject the solution into the Q[7] solution and shake well. Then put the pair of CdCl 2 The hot solution is quickly poured into the previously mixed solution and shaken again. After standing for 1 to several days, colorless transparent crystals appear, and the yield is 60-80%. Its structural formula is {[La 2 (H 2 O) 12 (C 42 h 42 N 28 o 14 )]·3CdCl 4 ·50...

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Abstract

The invention provides a seven-membered cucurbituril-rare earth metal linear tubular supramolecular polymer and a synthetic method. When cadmium chloride exists, the seven-membered cucurbituril-rare earth metal linear tubular supramolecular polymer is formed by seven-membered cucurbituril (Cucurbit [7] uril and Q [7]) and rare-earth metal salt (Ln (NO3)3 or LnCI3) in 6M hydrochloric acid solution. According to the seven-membered cucurbituril, dosing mole ratio of the rare-earth metal salt to the cadmium chloride ranges from 1:6 to 8:2-8, and mixture of the rare-earth metal salt and the cadmium chloride are heated and mixed evenly and stand for several days under normal temperature to form a target compound. The method has the advantages of being simple in the synthetic method, easy and simple to operate, high in productivity (between 60% and 80%), short in period and the like. Compared to pure seven-membered cucurbituril, the seven-membered cucurbituril-rare earth metal linear tubularsupramolecular polymer synthetized by the method has strong adsorption to methyl alcohol, ethanol and acetone.

Description

technical field [0001] The invention belongs to the technical field of metal-organic supramolecular polymers. Specifically, it is a seven-membered melon ring-rare earth metal linear tubular supramolecular polymer, its synthesis method and application. In the present invention, the seven-membered melon ring and the rare earth element form a linear tubular supramolecular polymer. This structure has the characteristics of nanotubes, and it may be used in applications such as molecular sieves, molecular wires, anion adsorption and exchange. Background technique [0002] Materials with a linear channel structure and their synthesis methods have received widespread attention in many fields such as nanomaterials, molecular sieves, and ion sensors. made some progress. But so far, people cannot effectively control the structure and size of nanopipes. In principle, organic or inorganic textured channel structures can be achieved through molecular supramolecular construction. Comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G79/00B01J20/26
Inventor 梁利利陈凯陶朱薛赛凤祝黔江
Owner GUIZHOU UNIV
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